Olympic National Park ⓘ

Ranging from sea level to over 2,000 m, Olympic National Park encompasses a broad gradient of habitats that are vital to local populations of numerous resident and migratory bird species. Many of these species have likely been negatively affected by extensive deforestation throughout much of the Olympic Peninsula, making the park‘s well-preserved habitats particularly important A peregrine falcon swoops down on a shorebird running along the beach. A long, cheerful, warble reveals a tiny winter wren singing hidden among the forest understory. Deep, hooting calls of a sooty grouse resonate across a mountain meadow. These are just a few of the many birds -- about 300 species in all -- that add color and song to the diverse habitats found in Olympic National Park. Respect Wildlife and Stay Safe! #RecreateResponsibly All wildlife in national parks are protected by federal law. According to the Code of Federal Regulations, 36 CFR § 2.2, the feeding, touching, teasing, calling, frightening or intentional disturbing of wildlife nesting, breeding or other activities is prohibited. Using apps to call out to animals within the park is considered harassment, especially if the species is federally listed as threatened or endangered.

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Animals in parks are wild—Visitors are responsible for their own safety and for the safety of the animals, too.

Olympic is home to over 300 species of birds, 70 mammals, and diverse tidepool communities.

From massive conifers over 20 stories tall, to minute clumps of pink Douglasia prying a life out of rocky peaks, the Olympic Peninsula and Olympic National Park boast an amazing diversity of plant life.

Over 1,450 types of vascular plants grow on the Peninsula, nearly the same number as the British Isles—an area 30 times larger. In addition, hundreds of species of non-vascular mosses , liverworts and hornworts also live here.

Why So Much Diversity? The park and surrounding Olympic Peninsula have snowy peaks that plunge to mist-shrouded coast. Misty temperate rain forest on the west side, lies only 34 miles from dry oak savanna in the rain shadow northeast of the mountains. These quick changes in elevation and precipitation mean a lot of different habitats are crowded into the area.

Though they are not true plants, many types of fungi and lichens also grow in these habitats.

Some of Olympic's plant species are not native to this area, see Invasive Exotic Plants to learn more.

All wildlife in national parks are protected by federal law. According to the Code of Federal Regulations, 36 CFR § 2.2, the feeding, touching, teasing, calling, frightening or intentional disturbing of wildlife nesting, breeding or other activities is prohibited. Using apps to call out to animals within the park is considered harassment, especially if the species is federally listed as threatened or endangered. Give Wildlife Space! All wildlife in national parks are Wild and can be dangerous. Do Not Touch or Feed wild animals! Report Don't Rescue! If you are concerned about dead, injured, or distressed wildlife or have experienced an uncomfortable encounter with wildlife, let a park ranger know or fill out this online report. Do NOT attempt to rescue wildlife yourself. We appreciate all reports of cougars, bears, and mountain goats.

Olympic National Park and its surroundings are home to a wide variety of wildlife. Just offshore, whales, dolphins, sea lions, seals, and sea otters feed in the Pacific Ocean. Some occasionally haul out on the coast to rest or moult. Invertebrates of countless shapes, sizes, colors and textures inhabit the tide pools. On land, some species, like raccoons, beaver and mink, live mostly in the lowlands and salamanders, frogs, and toads are to be found in the wetlands. Others, like deer, elk, cougars and bears, range from valleys to mountain meadows. Some, like the Olympic marmot only live in the high alpine. Park lakes, streams, and rivers are home to some of the healthiest runs of Pacific salmon outside of Alaska. Over 300 species of birds live in the area at least part of the year, from tiny penguin-like rhinoceros auklets offshore to golden eagles soaring over the peaks.

The wildlife community of the isolated Olympic Peninsula is also unique. This community is noteworthy not only for its endemic animals (found only here) , but also for species missing from the Olympics, yet found elsewhere in western mountains. Pika, ptarmigan, ground squirrels, lynx, red foxes, coyotes, wolverine, grizzly bears, bighorn sheep and historically, mountain goats, did not occur on the Olympic Peninsula. Meanwhile, endemic species like the Olympic marmot, Olympic snow mole and Olympic torrent salamander are found here and nowhere else in the world!

The park is a rare refuge for species dependent on old growth forests, including some species protected under the Endangered Species Act. Olympic provides one of the last remaining large tracts of intact primeval forest in the lower 48 states. These moist forests provide essential habitat for federally threatened and endangered species , such as wild salmon, northern spotted owls, marbled murrelets and a variety of amphibians.

Environmental factors include everything that changes the local environment. This can include anything from natural forces like weather, living park inhabitants , or human interactions like non-biodegradable litter. Any time you visit the park, you have an influence!

Every experience you have with nature is uniquely yours. Even if you have been to the park every year, you can see the changes because the environment around us is constantly changing such as weather, time of year, time of day, death and new life, and more. These environmental factors can even vary based on the influence of individual ecosystems and natural features around them. Enjoy the moments as they are, for they will never be exactly the same way again!

Some environmental changes are visible, such as a landslide caused by heavy rains. Other changes are not as easy to see. For example, some geologic change, like sediments becoming sedimentary rock, is too slow for the eye to see. Spending time in the park, one can find clues to the changes taking place right before us. While you may not be able to see a glacier move in real time, we witness the effects of these slow changes over time from climate change through studies and observation.

One of the leading sources of change at Olympic National Park is water. Whether visitors are hiking to the river valleys and waterfalls or watching the waves along the coast, water is a driving force of nature throughout. Erosion and Flooding

The many rivers are largely fed by annual snowmelt and rainfall, as well as the continual runoff from glacial melt coming from the high mountain peaks. Water erodes away the landscape, changing it as the flow follows the path of least resistance. As the waters gradually carve the banks along them, a phenomenon called 'river braiding' occurs. Channels of entertwined streams cut back and forth, widening the river valleys as they snake through. During the rainy season, typically November through March, the rivers swell with rain, often reaching well beyond their banks. This flooding brings with it fallen trees that are swept downstream or out to sea. Roads can even be at risk of being swept away, such as the Elwha road, whose bridges have been swept out before.

While some changes occur over time, some can be much quicker. As you drive along the coast, you may see signs for a "Tsunami evacuation route" posted. Tsunamis are large, fast-moving waves. As the wave mass travels across the ocean, the wave and power behind it increases. Further out in the deep ocean, the waves can travel at 500 mph (800 kph). As it nears the shore, the wave condenses, slowing to 20-30 mph (30-50 kph), still faster than a human can run, but still containing the huge amount of power in what becomes a 10-100 ft (3-30 meter) tall wall of water as it hits land.

Changes will always be occuring throughout Olympic's waterways, but what will it look like in the future? Snowmelt is declining as temperatures increase. Glaciers are melting quickly. Rivers that flow heavily today may decline, leaving people and animals to adjust to a drier peninsula. The park studies water quality in order to ensure safety and understanding today and in the future.

Water is moving; changing. Rivers and glaciers carve out canyons and valleys. Ocean waves grind away cliff sides and create beaches of small rocks and shells. Water freezing in crevices splits cliffs into boulders and boulders into smaller rocks. Much of the natural beauty of the park is formed by water's nourishment. While parts of the peninsula lie in a rainshadow, the moss-laden rainforests found along the Hoh, Queets, and Quinault valleys accumulate an average of 138 inches of rainfall each year. Quenching the thirst of the forest allows for lush foliage to provide food and shelter for the wildlife of the park, as well as photo opportunities for visitors.

Olympic boasts diversity around every turn. Every layer of Olympic has an ecosystem that hosts unique features, plants, animals, geology, and history. Each ecosystem is its own complex web. Even based on unique environmental factors that help to change the landscape, we see the variety of Olympic come to life around every corner. Follow the links of each below to delve into the wonders of the wilderness, learning about where to see these ecosystems, what brings them to the Peninsula, and what thrives within.

Mountains The Olympic Mountains are host to montane forests giving way to subalpine meadows, rocky alpine slopes and glacier-capped summits. Some of the area's endemic plants and animals are found in these high elevation ecosystems. While other mountain ranges are eroding, the Olympics continue to grow every year.

Rivers & Lakes Spreading out from the park’s dense and rocky interior is a myriad of interlinking rivers, lakes, and streams. These bodies of water provide sustenance to plants and animals alike. As seasons change and years pass by, the wet web of Olympic National Park is in constant transformation. From the salmon spawning to the otters fishing them, there’s much more beneath the surface of these various Western waterways.

Forests Olympic National Park was established in 1938 in part to preserve some of Washington's quickly disappearing primeval forests. Now the park protects one of the largest remaining blocks of old growth forest and temperate rain forest in the lower 48 states. Many of the 62 species of mammals roam through the forests foraging and hunting. Each forest is uniquely its own and even in a single park, diversity abounds.

Coast From sandy beaches to rocky offshore islands, Olympic's shoreline harbors a wealth of marine and intertidal communities. The coastline changes with every tide, making it a new experience every hour of the day. Use your senses to enjoy views of spectacular sunsets over the deep blue sea; take in soundscapes of crashing waves and barking sea lions; smell the salty sea air that stings the cheeks and refreshes the mind.

Geology The Olympic Peninsula awes visitors for its drastic contrast from sea level to alpine meadows all in the same park. Animals meander, following the greenery as meadows turn to snow fields. Plants cling low to the rocky soil or tower over the valley floor. Each year, people will stand on Hurricane Ridge, soaking in views in all directions of powerful looming mountain peaks, trek across the landscape, and marvel at the scenery all made by the forces of the Earth. Each ecosystem, each natural feature, and each living creature are here due to geologic process of the past, present, and future. Everything that creates the beauty of the park, from animal homes to vacation views, relies on geology. More...

The Olympic Peninsula is moving below your feet. Can you feel it? Perhaps not, unless a large earthquake occurs, but the land is moving: slowly, but drastically, today and for the past 50 million years.

The Olympic Mountains were born in the sea. The basalts and sedimentary rocks that form the mass of these peaks were laid down 18 to 57 million years ago offshore, then uplifted, bent, folded and eroded into the rugged peaks you see today. Off the coast of the Olympic Peninsula, a dramatic story of epic proportions is slowly, yet steadily, occurring beneath the sea. Washington state boasts volcanoes from the north to the south that have made history. The Olympic range is not volcanic, but visitors may notice some geology that makes it seem as if they were. Years ago, underwater volcanoes erupted, gushing lava that cooled into basalt, a distinctly volcanic rock, on the ocean floor. This layer of sediment built up atop the tectonic plate below, blanketing the ocean depths. Then, a shift occurred. As the floor of the ocean shifted with the larger tectonic plate it rested upon, the basalt would become key to this hidden geologic past. Plates can move away from each other, parallel to each other, or into to each other. About 34 million years ago, just off of what was the former coastline, two massive tectonic plates, the North American Plate and the Juan de Fuca Plate, were sent into a collision that would literally shape the Olympic mountains. The Juan de Fuca plate is currently being forced under the larger North American plate, causing uprising of the landscape, crumpling of rocks, and endless jagged peaks that inspire visitors to the peninsula every day.

Just how does subduction work? Think of waking up on a chilly winter morning, getting ready for the day, and going outside to find a thick layer of frost on the windshield of your car. With no time to warm the car enough to melt the ice, you grab a scraper from the trunk. As the wide, blunt end of the scraper pushes into the sheet of ice, the solid windshield is stable below the scraper, but the weaker sediment lying on top of the windshield (the ice) starts to move, crinkling from a thin even layer into a condensed pile. Now, replace your scraper with the North American plate, replace the windshield with the oceanic crust that goes beneath the North American plate as they meet, and replace the ice on your windshield with the layers of sediment lying thick on the ocean floor that are now being pushed up as mountains.

Image used from https://www.nps.gov/subjects/geology/plate-tectonics-subduction-zones.htm

" Ranger Jen’s Oreo Demo Jennifer Natoli was a seasonal ranger at Redwood National and State Parks in California. In her version of the Oreo® cookie demonstration, the creamy filling is the layers of sediment and basalt on the ocean floor. As the Juan de Fuca Plate (lower cookie) subducts beneath the North American Plate (upper cookie), the layers are scraped off the ocean floor and pile up as the Coast Range.

Subduction is just the beginning of the monumental geologic story that is the Washington Peninsula. The mountains of today can be enjoyed from many viewpoints, but are changing each day. Over the course of millions of years, the immense weight of settling sand, mud, and debris on the ocean floor hardened into sedimentary rock. As the two tectonic plates of the area crash together, the Juan de Fuca Plate which holds the ocean and the Olympic Peninsula, is forced downward underneath the land-bearing North American Plate. However, not all of the crust on the oceanic plate makes its way further underground. Much of the built-up sedimentary rock on top of the tectonic plate continues to crumple against the landmass of North America and fold upwards out of the water, rising from the depths as time goes on.

Hurricane Ridge and Mt. Angeles Millions of visitors each year traverse the high and winding road up to Hurricane Ridge . This ridgetop and corresponding trails up Hurricane Hill and Mt. Angeles are popular daytime destinations to get far ranging views of the widespread mountains of Olympic. However, while the panoramic distant peaks may draw the eye and drop the jaw, taking a moment while standing on the “hill” to ponder the ridges and folds right below the feet allows for a close-up peep into the lost chapters of the peninsula. As hikers follow the ridge on the Hurricane Hill trail, they pass by what appears to be slices of stone all pressed together into a tall standing ream of rock. If one could peel apart these “pages” they would see a very different story of what the mountain has looked like before. These segments are former pieces of the ocean floor, now standing just shy of 6,000 feet above sea-level! The former ocean bed crumples and folds as it crashes into the North American Plate, rising from below. As this happens, the stone is tilted almost vertical, now thousands of feet above the sea as we know it today.

Mountains are one of Olympic National Park’s most prominent geologic features, including Mt. Olympus, the tallest of the Olympic range. This giant reaches 7, 980 feet high at its summit. The Olympic Mountains are still being uplifted as the plates continue to converge. However, as changes from environmental factors continue to occur, erosion happens at such a rate that makes this uplift insignificant in sum. While many will view mountains from a distance, others seek to conquer the views from atop by mountaineering . No matter the angle, Olympic National Park offers incentive for all to visit.

Geology is not just about sediment, but about the shaping and forming of it, as well. Over the past tens of millions of years, the earth has been rising from below. However, it has also been shaped from above. While today we may stand on soil, only 14,000 years ago, if visitors could have come to the region, they would have been standing atop ice thousands of feet high before it started to recede and release the land below from its icy weight. About 2.1 % of the Earth’s water is held in glaciers around the world. Glaciers have had an impact for millions of years, although what that looks like is changing. As of 2020, Washington is the state with the second largest number of glaciers in the US, after Alaska. The number and size change each year as climate change continues to impact them. Even from the vantage point of a moraine, you can experience this change by listening to the creaks and groans, almost as if the glacier were telling its own story.

Recognizing a Glacier Today You look at the mountains, dotted with white. What do you see? Snow from the previous winter? Or a glacier that has existed for years? Whether hiking to the end of the Hoh River Trail and standing on the lateral moraine of Blue Glacier or taking in distant view from Hurricane Ridge visitor center, visitors to the park may wonder what they are actually looking at. Unlike a snowpack, glaciers have a few distinctive characteristics to search for:

Crevasses, or large cracks and gaps, can be seen in glaciers. These are evidence of glaciers shifting and moving. Not all parts will move at the same rate, creating friction and cracking. This is particularly indicative of faster movement from a glacier.

Moraines are piles of sediment that build up after being deposited or moved from the melting of a glacier. Typically, they are on the boundaries of a glacier, like at the edge (a lateral moraine) or at the end (a terminal moraine).

Lakes and ponds can be created by glacial melt. As a glacier melts, water can collect at its terminus and will form a lake. Many alpine lakes show where there were glaciers in the past. Glaciers can also form surface ponds in their divots.

All images are public domain NPS taken by Janis Burger on fixed wing glacier monitoring flight 10-18-10, high overcast from about 1100-1400 hrs.

Evidence of the Past While many glaciers have melted, we can still see evidence of their influence across the landscape:

Glacial erratics are large boulders and rocks that were not formed where they rest today, but instead were moved to that location by a glacier. Sediment can fall on a glacier and move with it or be picked up as a freeze happens. Areas were carved out by glaciers' weight and friction, but the sediment moved doesn’t disappear. Instead, it is pushed aside or picked up and moved to other places. As they melt, glaciers drop sediment, sometimes carried for thousands of miles. The cycle of melting, moving, and refreezing has helping to track the former paths of these glacier.

Scree fields can be created in the moraines, shaping basins and sediment.

When the glaciers were much larger, they would extend down into the rainforest valleys of today. These valleys are U-shaped with wide, flat bottoms and tall cliff sides as the glacier moved across the entire valley, spreading its weight and grinding action evenly across. This is distinctly different to V-shaped, river carved valleys, where the water is fluid and concentrated as it takes the smallest path of least resistance.

As a glacier melts, the water flows through these valley watersheds. The Hoh River today is fed by water from Blue Glacier, White Glacier, and Hoh Glacier. The sediment flowing out of the geologic giants above creates the iconic blue, silty look of the massive river today.

A Landlocked Island While today, visitors fly and drive from around the world, this landscape was not always so accessible. The density in which the ice moved over the Peninsula created a sort of ‘island’ of land, inaccessible to other parts of land further away. People could not access the ocean and rivers at the time. Even animals could not encroach. However, this meant that other animals could not expand. Today, Olympic National Park is home to five species of endemic mammals, meaning the only place on Earth they are found is here, including the Olympic Marmot . Thanks to the rich diversity and accessibility of waterways, the Olympic Peninsula became home to people almost as soon as it was accessible and livable. Even some animals are relatively new to the area including coyotes and foxes.

Our Glaciers Today and Tomorrow Glaciers are a popular destination and sought after sight for many of the visitors to Olympic National Park. While they may not be the first feature that comes to mind when you think of the ocean and rainforest ecosystems of the Pacific Northwest, they are an important component to the geologic and ecologic story, even today. That story has always consisted of change, and the rate of that change is only increasing as climate change affects the glaciers of these mountains. The Blue Glacier is the largest glacier in the Olympic Mountain Range and, while snow still flies many months of the year, the warmer temperatures more often mean that it, too, will continue to shrink. However, the story of geologic change is one that is still growing.

Geology is prevalent along the Olympic Coast as it is marveled at in the high cliffs, the tidal pools , and the depths of the ocean. Geologic processes have shaped and influenced them all. The coast of the Olympic Peninsula is particularly famous for some of this distinct geology, the history the rock preserves, and the incredible views they create today.

The coastline of Olympic National Park draws visitors for its rugged views. Notable for its sea stacks, which tower several stories overhead, the Pacific Coast truly is a mystifying sight to see. These towers of rock that make the peninsula coastline so famous define the views from beaches such as Ruby Beach , Ozette Beach , Shi Shi Beach, Rialto , La Push, and First, Second and Third Beach. Not only shrouded in salty water, but in history and mystery as well, the geology behind these majestic rock outcroppings lies just as much in what we see today as it does in what is no longer there. The jagged sea stacks are a part of the Hoh Rock Assemblage. Long ago, this “Rock Assemblage” would have resembled a sort of geologic chocolate chip cookie dough. Throughout several millennia, there have been a great variety of rock types in the area. The dense volcanic and marine sedimentary rocks would be the chocolate chips amidst the cookie batter of the softer mudstone. At that time, the high cliffs now seen above the beach were sitting at sea level. The driving power of the ocean waves pummeled and weakened the mudstone, washing it away, but the sturdy volcanic chocolate chips remained. The cliffs rose with the same tectonic forces that rose the mountains of the peninsula, and alongside them rose the same volcanic outcroppings that were left behind.

Tilted Rocks Walking down from the parking lot at Beach 4, visitors are greeted by a unique view. The rocks on which they stand appear to be fully tilted as they jut from the sand. Not only are these panels of sandstone tilted, but they are also upside down! A few geologic processes are at work to make the unique formations at Beach 4. The formation of these rock layers happened by sediment settling after the occurrence of a natural phenomenon known as a “turbidity current.” Turbidity currents are essentially massive underwater landslides. As sections of the steep continental shelf give way—due to earthquakes or other disturbances—the main body of sand, mud, and debris forces its way to the bottom of the slope first. As the finer particles finally settle in the water, a layered gradient of particle size occurs, with the larger particles at the bottom of the pile. Overtime this mix of debris compresses into sandstone. To better imagine this in action, one may picture kicking up a pile of dead leaves in autumn. As they do so, the wetter, denser leaves along with heavier sticks and twigs fall to the ground first. Afterwards, having been caught in the wind, the lighter, crisper, or smaller leaves lightly drift and land atop the pile. A look inside this new pile would show layers of the larger sticks and denser leaves at the very bottom and the lighter debris on top. In this very same way, we can tell even with the naked eye that the rock layers at Beach 4 have fully overturned. How? Because the smaller particles are at the bottom! These layered sandstone formations eventually uplifted towards the surface of the ocean. The power of the waves ultimately planed off and flattened the top of the rocks before they rose more, eventually escaping the rage of the sea altogether as they now rest well out of reach of high tide.

Water has directed and been directed in turn by the geologic processes of Olympic National Park that are highlighted below. Each water feature is bound in shape and flow by its geologic past. However, all of these lakes and rivers continue to reveal more about the ecologic and human past, present, and future with every passing droplet.

Lake Crescent As massive glaciers slowly crept across the Olympic Peninsula and began to recede, a deep scar in the Earth filled with crystal clear water. This cut in the land came to be known as Lake Crescent. The largest lake in the park, Lake Crescent is unique for many reasons. It tells many stories within its shape, color, depth and makeup, yet still holds many mysteries for the same reasons. In the summer, recreational swimmers and boaters need only paddle a few yards from the beach and look down to witness the cobbled shore as it gives way to the intimidating darkness below. The sheer depth of the lake is one factor that lends to the lake’s deep hue. Officially reaching down 624 feet (190 meters) below the surface, the waters are cold and have limited nitrogen. The lack of this chemical prohibits the growth of most algae, which leaves the waters with glass-like clarity. On top of the vertigo-inducing depths, Lake Crescent is also 11.8 miles long. However, it used to be much larger. Geologic record shows that approximately 7,000 years ago a cataclysmic landslide event occurred. The immense boulders and debris cut the glacial lake in two, leaving behind both Lake Crescent and the neighboring, much smaller, Lake Sutherland in the process.

Other Lowland Lakes Olympic National Park is home to many notable lakes known for their beauty and recreation. From Lake Cushman in the southeast to Lake Quinault in the southwest to Ozette Lake along the coast, water invades the landscape, providing for enjoyment and park life alike. As all water tells a story on the peninsula, so do these bodies of water. Lake Quinault rests within the glacially carved valley of the Quinault River in the park's southwest corner. Lake Ozette's surface is less than 30 feet (9 meters) above sea level, which means that its bottom is over 300 feet (91 meters) below sea level. Lake Cushman is not within the boundary of the park, but does derive its water source from the peaks and flows within. While the basin in which Lake Cushman lies is naturally glacially carved, the lake basin itself is human-made and kept up by a dam that regulates water and provides power to the Southeast. The lowlands indicate the story being passed down from the heights of the watershed and the past that made them.

Alpine Lakes Hiking higher into the Olympic wilderness can lead to different ecosystems than those seen from the roads. In higher heights, open meadows, scree slopes, and alpine lakes abound. Hiking trails such as Seven Lakes Basin lead past lakes of varying sizes, left behind to tell a story of what once dominated the towering peaks. These glacial lakes show where there was change in the landscape as glaciers came through, carved natural basins in the land, and filled them back in with melt over the years. Many glaciers have melted away, but visitors are invited to enjoy a glimpse of the frozen past within the beauty of today's geology. By studying these lakes, the park can better understand the weather patterns based on when they freeze and melt out as well as water quality and content. Many of these lakes were stocked with fish, changing the ecosystem within and around it. Look for signs of birds and other predators that may take advantage of the human influence left behind.

River Valleys Rivers define Olympic National Park from the human history, to the geologic history, to the ecosystems that rely on them. Geology defined the rivers as they are today. As many streams spiral out from the tallest peaks in the center of the Olympic Wilderness, they come together in larger watersheds with glacially carved river valleys that continue to reach and wind their ways down to the ocean coast. River and lakes of Olympic are not only defined by the geologic makeup, but by the past, present, and future of the balance in the ecosystem as a whole.