U. S. National Parks
Factbook

October 2026 edition
A Factbook library volume ↗

← Contents by designation

National Historical Parks · Delaware

First State National Historical Park

Official park website ↗

Introduction

Background: 1

Famous as the First State to ratify the Constitution, Delaware was born out of a conflict among three world powers for dominance of the Delaware Valley. From this beginning, the region developed a distinct character that tolerated diversity in religion and national origin and valued independence.

Geography

Designation: 3

National Historical Park

State or territory: 4

Delaware

Park Map - First State National Historical Park: 5

Map of First State National Historical Park in Delaware. The entire state of Delaware is shown in tan with neighboring states labeled and outlined in gray. Landmarks are represented by dark green dots and labels or light green shading. Roads and highways are represented by brown lines.
Park Map - First State National Historical Park · National Park Service, Harpers Ferry Center · Official map PDF ↗

Map scope: First State National Historical Park

Map of First State National Historical Park in Delaware. The entire state of Delaware is shown in tan with neighboring states labeled and outlined in gray. Landmarks are represented by dark green dots and labels or light green shading. Roads and highways are represented by brown lines.

History and culture

Stories: 6

A series of articles about the trials of abolitionists Thomas Garrett and John Hunn that occurred inside the New Castle Court House.

A series of articles about the settlement and development of industry in the Brandywine Valley.

Founded in 1651, former colonial capital New Castle reflects U.S. history locally. This Historic Benchmarks series explores its layered past

History & Culture: 7

First State National Historical Park explores the places, stories, and people that played a role in the settlement of the Delaware Valley, the founding of the nation, the testing of the U.S. Constitution, and the conservation of our natural resources. The park is made up of six individual sites spread throughout the state that connect through their stories and the people have used them. We encourage you to explore these places, stories, and people to learn more about the park. Please note that we are a young National Park and are working hard to create new content, we appreciate your patience and understanding.

Nature

Ecology; Nature & Science: 8

First State National Historical Park (NHP) preserves and protects Delaware's nationally significant cultural resources, as well as a substantial native biodiversity, across the seven sites. The Brandywine Valley unit specifically, a roughly 1,100-acre area of rolling hills, beautiful agricultural land, and vital watersheds, is one of the few, large, protected areas in northern Delaware and southeastern Pennsylvania. This area has a variety of habitat types including numerous wetlands, forested areas, and meadows. Learn more about the animals and plants at First State NHP! If you are interested in learning about the NPS Inventory and Monitoring Program, hop on over to the subject site for awesome maps, science, and videos . Use the tool below to find out what speices have been identifiied at First State National Historical Park!

Plants: 9

A native plant is a plant that has existed in this region before colonization by Europeans in the 1630s. A non-native plant is a plant that has been introduced to an area by human activity, meaning anything that came with those early European settlers, along with those have settled in this region beyond. One tricky bit of information to remember here is: not all non-native plants are invasive, but all invasive plants are non-native. Invasive species are non-native and exhibit rapid growth and have other traits that allow them to spread more easily, and overtake native species. Invasive species can cause serious impacts on the native ecosystem.

Today, in the Brandywine Valley unit of First State NHP, we can see other non-native plant species that have been introduced from Asia, Africa, and other European countries. The Botanical Inventory completed in 2015 concluded that approximately two-thirds of the total number of individual plant species found within the park’s boundary are native, and one-third of the total number of individual plant species found within the park’s boundary are non-native. However, even though there are fewer individual non-native plant species in total, they are located more frequently throughout the park than the native plant species, and are aggressively overpowering the native species.

What’s Below: Northern Delaware sits within the Piedmont Plateau Region, which has a unique geological composition – or in other words, the types of minerals found within a rock and the overall chemical makeup of those rocks. The Piedmont Plateau influences the plant communities found in this part of the region. For example: trees that grow in Maine are different from the trees that grow in Florida, and different from trees that grow in Arizona; all because of what’s underneath, in the minerals and chemicals in those rocks.

The Wildlife: When non-native plants displace native plant species, it causes changes in the arrangement of the local plant communities. This directly affects animal habitats and animal behaviors, such as foraging and grazing, and also impacts the abundance of wildlife within the park.

Climate Change: Managing the spread of non-native plant species and restoring native plant species is extremely difficult and can be very challenging, but is super important. The more non-native plants are present in a given area compared to native plants, other threats, like climate change, intensify the impacts on the local ecosystem, because things are out of balance. Native plants are better equipped to handle changes in the environment, because they are in their home-habitat.

Animals: 10

First State NHP staff, volunteers, and local partner organizations have recorded 178 species within the park, and the majority of these species are birds. Park staff are dedicated to continuing to inventory the wildlife found within the park. It is unclear just how many species live here, but we want to find out! Species are being documented annually to better understand those species, and to inform management. The National Park Service recognizes the park’s significant natural resources and has invested in scientific research to document and learn more about the wildlife in the park.

Where can I see wildlife? Animals of all kinds can be seen throughout the park, but different habitats support different species. Mammals can be seen scurrying through the woodlands and fields, amphibians can be found near wetlands, reptiles near rock structures, and birds soaring through the sky and tree canopy.

Understanding the behavior and the habitat of an animal you’re interested in will help to find them within the park. Early morning and evening hours are when animals tend to feed and are more easily seen. But remember, the numbers and variety of animals you see are largely a matter of luck and coincidence. Bring some binoculars to be able to enjoy animals from a safe distance, and have a wonderful time exploring! As far as seeing a variety of animals - we hope you get lucky; may the odds be ever in your favor; may the force be with you ... you get the drift!

The diversity and abundance of birds in the Brandywine Valley unit of the park draws nature lovers, photographers, and bird enthusiasts.

Due to the diversity of habitats in the park, invertebrates can be found everywhere - you may just have to look a little closer!

Places to explore

Places To Go: 11

Units of First State First State National Historical Park consists of six individual sites that are spread throughout the state of Delaware. Together these sites tell First State National Historical Park's story and can be visited in any order.

Explore the Sheriff's House Welcome Center to learn more about the park. Located in Historic New Castle,DE (Photo Credit: Riggs Ward Design)

302-317-3854 To speak to a park ranger, call the park Welcome Center (302-317-3854) and someone will return your call as soon as possible. For a more immediate response, please email the park at firststate@nps.gov.

Trails and walks

Trail Plan Implementation: 12

Background: The Brandywine Valley unit of First State National Historical Park is the largest unit of the park, covering 1,359 acres along the border of Delaware and Pennsylvania. This land was originally inhabited by the Lenni-Lenape people. Later, early Quaker industrialists developed the area, and it was eventually sold to William Poole Bancroft. Bancroft created the Woodlawn Trustees to manage and protect the land. In 1959, the Woodlawn Trustees began building bridle paths to help their officers and guests explore more of the area. They used some existing farm roads and added new paths for recreational use. By 1968, these paths were open to the public for activities like hiking, biking, and horseback riding. In 2013, roughly 1,105 acres were donated to the National Park Service (NPS), and in 2021 another 254 acres were donated. In 2024, the park completed a Comprehensive Trail Plan that defines a designated shared-use 27.8-mile trail network that will provide high-quality recreational opportunities, promote visitor safety and enjoyment and preserve connectivity with leased property within the Brandywine Valley section of the park and neighboring properties.

Timeline: Over a five-year period, the NPS anticipates implementing trail construction and modifications in the following order: Trails affected by mica mine fencing Trails intersecting private inholdings Trails that help promote user safety, such as avoiding dangerous road crossings Trails promoting connectivity throughout the Park Trails in the Rocky Run area Trail closures would generally occur concurrently with associated trail construction and modifications. As resources allow, implementation may occur concurrently in multiple portions of the unit. Upcoming Trail Projects: Dates: Project Location: Work Description: Volunteer Recruitment: September 15 - September 23 North Central Re-route, repair, closures, and construction This project is not open to volunteers. September 29 - October 7 North Central Re-route, repair, closures, and construction This project is not open to volunteers.

A. The National Park Service is not targeting Mountain Bikers; however, the National Park Service has regulations in 36CFR §4.30 (the Bicycle Rule) that establish administrative pathways to allow bicycle use on trails within park areas. The Revised EA meets the requirement in the Bicycle Rule to evaluate the effects of bicycle use on each shared-use trail in the Brandywine Valley unit of the Park. In addition to the planning and National Environmental Policy Act compliance documents (which are typically the same document), the Superintendent must prepare, and the Regional Director must approve, a written determination stating that the addition of bicycle use on the trails is consistent with the protection of the park area’s natural, scenic and aesthetic values, safety considerations and management objectives, and will not disturb wildlife or park resources.

At the completion of the planning process, the NPS will promulgate a special regulation, through a public notice and comment rulemaking process, that will authorize the Superintendent to allow bicycles, by designation in the Superintendent’s Compendium, on all or a portion of the trails identified in the selected action.

The National Park Service is identifying new trail projects to start working on. When projects are available, we will share updates on our social media and email volunteers who are interested. We’ll also post volunteer recruitment opportunities on volunteer.gov.

If you want to receive email notifications about volunteer opportunities, please email us to sign up.

Review the planning documents associated to the Brandywine Valley Trail Plan including the EA, FONSI, PA, etc.

There is nothing so American as our national parks… The fundamental idea behind the parks… is that the country belongs to the people, that it is in process of making for the enrichment of the lives of all of us.

Visitor information

Physical Address: 13

First State National Historical Park
10 Market Street
New Castle, DE 19720

Mailing Address: 14

First State National Historical Park
10 Market Street
New Castle, DE 19720

Telephone: 15

Visitation

Recreation visits: 16

200,173 (2025)

Sources & field notes

Source records (16)

Select a numbered reference to open a source card. Retrieval dates describe this edition’s source capture, rather than an independent verification or the date of the underlying information.

  1. Background · Official park structured information. Open source ↗

    Information date
    Not supplied by the source
    Retrieved
    2026-10-30
    Evidence
    Single source; not independently corroborated.
    Reuse
    NPS-supplied text; NPS-authored government work generally public domain, subject to third-party rights.
    Return to field ↑
  2. First State National Historical Park · NPS / Victoria Stauffenberg. Open source ↗

    Information date
    Not supplied by the source
    Retrieved
    2026-10-30
    Catalog image date
    10/29/2016
    Source scope
    First State National Historical Park
    Evidence
    Single source; not independently corroborated.
    Reuse
    Public domain:Full Granting Rights
    Rights
    Public domain:Full Granting Rights
    Return to field ↑
  3. Designation · National Park System directory. Open source ↗

    Information date
    Not supplied by the source
    Retrieved
    2026-10-30
    Evidence
    Single source; not independently corroborated.
    Reuse
    Factual reference data; source attribution retained.
    Return to field ↑
  4. State or territory · National Park System directory. Open source ↗

    Information date
    Not supplied by the source
    Retrieved
    2026-10-30
    Evidence
    Single source; not independently corroborated.
    Reuse
    Factual reference data; source attribution retained.
    Return to field ↑
  5. Park Map - First State National Historical Park · National Park Service, Harpers Ferry Center. Open source ↗

    Information date
    Not supplied by the source
    Retrieved
    2026-10-30
    Source scope
    First State National Historical Park
    Download
    Official map PDF ↗
    Evidence
    Single source; not independently corroborated.
    Reuse
    Public domain; NPS map
    Rights
    Public domain; NPS map
    Return to field ↑
  6. Stories · Stories — National Park Service. Open source ↗

    Information date
    Not supplied by the source
    Retrieved
    2026-10-30
    Source page last updated
    January 22, 2026
    Evidence
    Single source; not independently corroborated.
    Reuse
    NPS-authored U.S. government material is generally public domain; third-party content may have separate rights.
    Return to field ↑
  7. History & Culture · National Park Service. Open source ↗

    Information date
    Not supplied by the source
    Retrieved
    2026-10-30
    Evidence
    Single source; not independently corroborated.
    Reuse
    NPS-authored U.S. government material is generally public domain; third-party material may have separate rights. No images copied.
    Return to field ↑
  8. Ecology; Nature & Science · Nature & Science — National Park Service. Open source ↗

    Information date
    October 18, 2021
    Retrieved
    2026-10-30
    Evidence
    Single source; not independently corroborated.
    Reuse
    NPS webpage text; U.S. government work generally public domain. Third-party material may have separate rights.
    Return to field ↑
  9. Plants · Plants — National Park Service. Open source ↗

    Information date
    June 26, 2020
    Retrieved
    2026-10-30
    Evidence
    Single source; not independently corroborated.
    Reuse
    NPS webpage text; U.S. government work generally public domain. Third-party material may have separate rights.
    Return to field ↑
  10. Animals · Animals — National Park Service. Open source ↗

    Information date
    May 13, 2021
    Retrieved
    2026-10-30
    Evidence
    Single source; not independently corroborated.
    Reuse
    NPS webpage text; U.S. government work generally public domain. Third-party material may have separate rights.
    Return to field ↑
  11. Places To Go · National Park Service. Open source ↗

    Information date
    Not supplied by the source
    Retrieved
    2026-10-30
    Evidence
    Single source; not independently corroborated.
    Reuse
    NPS-supplied text; NPS-authored U.S. government work is generally public domain, subject to third-party rights.
    Return to field ↑
  12. Trail Plan Implementation · National Park Service. Open source ↗

    Information date
    Not supplied by the source
    Retrieved
    2026-10-30
    Evidence
    Single source; not independently corroborated.
    Reuse
    NPS-supplied text; NPS-authored U.S. government work is generally public domain, subject to third-party rights.
    Return to field ↑
  13. Physical Address · Official park structured information. Open source ↗

    Information date
    Not supplied by the source
    Retrieved
    2026-10-30
    Evidence
    Single source; not independently corroborated.
    Reuse
    NPS-supplied text; NPS-authored government work generally public domain, subject to third-party rights.
    Return to field ↑
  14. Mailing Address · Official park structured information. Open source ↗

    Information date
    Not supplied by the source
    Retrieved
    2026-10-30
    Evidence
    Single source; not independently corroborated.
    Reuse
    NPS-supplied text; NPS-authored government work generally public domain, subject to third-party rights.
    Return to field ↑
  15. Telephone · Official park structured information. Open source ↗

    Information date
    Not supplied by the source
    Retrieved
    2026-10-30
    Evidence
    Single source; not independently corroborated.
    Reuse
    NPS-supplied text; NPS-authored government work generally public domain, subject to third-party rights.
    Return to field ↑
  16. Recreation visits · National Park Service Visitor Use Statistics. Open source ↗

    Information date
    2025
    Retrieved
    2026-10-30
    Methodology
    NPS reporting unit; annual total is the sum of 12 monthly recreation visit estimates.
    Reporting unit
    First State NHP
    Evidence
    Single source; not independently corroborated.
    Reuse
    Factual reference data; source attribution retained.
    Return to field ↑
Source information

NPS VISITOR USE STATISTICS

Recreation visits

Loading source data…