Thanks to these Partners for Supporting the City Nature Challenge!

11th Street Bridge Park

Washington, D.C.’s first elevated public park perched over the Anacostia River, the 11th Street Bridge Park will be a space for healthy recreation, environmental education, and the arts.

The mission of the Anacostia Watershed Society is to protect and restore the Anacostia River and its watershed communities by cleaning the water, recovering the shores, and honoring the heritage. The vision is to make the Anacostia River and its tributaries swimmable and fishable, in keeping with the Clean Water Act, for the health and enjoyment of everyone in the community.

Arlington County Department of Parks and Recreation Logo

Arlington County

As the nation’s first LEED Platinum certified community, Arlington County is a nationally recognized leader in creating a sustainable and resilient urban environment. We have long-proven success in reducing greenhouse gas emissions, managing stormwater, fostering environmental stewardship, and promoting our residents’ health and well-being.

Arlington Regional Master Naturalists

ARMN is a chapter of the Virginia Master Naturalist program, which is a statewide corps of volunteers providing citizen science, environmental education, outreach and stewardship dedicated to the beneficial management of natural resources and natural areas within local communities in Virginia. Interested citizens become Master Naturalists through training and volunteer service.

Bethesda Green

Our Mission is to accelerate the sustainable economy locally with a focus on innovation, impact, and community. We are an Incubator, a Connector, and a Community Partner, acting in synergy, with Impact.

Calvert County Natural Resources Division

The mission of the Calvert County Natural Resources Division is to preserve, manage and operate natural resource areas to provide compatible outdoor recreation and educational opportunities for the public.

Calvert Nature Society

Calvert Nature Society is dedicated to the protection and preservation of Calvert County’s natural heritage and the creation of an environmentally literate and aware community. We provide opportunities for appreciation and understanding of our natural world through our outreach initiatives and in support of the mission of the Calvert County Natural Resources Division. 

Capital Naturalist

Alonso Abugattas shares insights on the natural world on Facebook, Twitter and Blogspot and leads field trips around our nation’s capital. Alonso uses his own photography and invites you to explore the wonders of nature around us.

Capital Nature

Capital Nature is a nonprofit organization dedicated to bringing nature into the lives of Washington Metro area residents and visitors. We believe people are healthier, and our communities more resilient when nature is part of our lives. We envision a Washington DC region where a culture of nature engagement and stewardship thrives—where daily contact with the natural world supports human wellbeing  and ecological health across our communities.

We plant trees, engage volunteers in tree planting and care, provide year-round continuing education courses, monitor Washintgon DC’s tree canopy, develop interactive online tree tools and work with elected officials, developers, and community groups to protect and care for existing trees and to encourage the addition of new ones.

Chesapeake Natives Nursery

The Mission of Chesapeake Natives, Inc. is to promote, protect, and propagate plants native to the Chesapeake Bay Watershed.

The mission of the Croydon Creek Nature Center is to promote and enhance the knowledge, understanding, appreciation and protection of the natural resources through quality interpretive programs and exhibits for the citizens of Rockville.

City of Takoma Park

The City of Takoma Park is a municipality of approximately 17,000 residents in Montgomery County, Maryland. Takoma Park is densely populated but feels comfortable due to its hills and large trees. Takoma Park is known as “Azalea City” because of the many flowering azalea bushes that brighten the area in the spring. Stream valley parks along Sligo Creek and Long Branch Creek cross the city and, along with other city parks, provide bike trails and play areas for the community.

The mission of the Clifton Institute is to inspire the next generation of environmental stewards, to learn about the ecology of the northern Virginia Piedmont, and to conserve native biodiversity. We are a non-profit organization located two miles north of Warrenton, in the northern Piedmont of Virginia. We provide environmental education, conduct ecological research, and restore habitat for native plants and animals. We are working on a long-term bioblitz, hosted on iNaturalist, to document all species of animals, plants, fungi, and protists on our 900-acre property.

Conservation Nation

Conservation Nation preserves the planet by cultivating an inclusive and resilient wildlife conservation movement.  We break barriers to accelerate the growth of a strong community of wildlife champions solving urgent biodiversity challenges together.

Corazón Latino

Corazón Latino is a national non-profit organization that seeks to generate social, environmental, and conservation initiatives that foster natural resource stewardship. Corazón Latino mobilizes the passion, love, unity, solidarity, and resources of individuals, communities, organizations, and government entities to advance the common good.

Fairfax County Park Authority

The Park Authority Mission is to enrich quality of life for all members of the community through an enduring park system that provides a healthy environment, preserves natural and cultural heritage, offers inspiring recreational experiences, and promotes healthy lifestyles.

Fairfax County Public Library

We build community and promote literacies through programming, community spaces, technologies, and collections of educational and recreational resources.

The mission of the Friends of Anacostia Park is to enrich the lives of DC residents by preserving Anacostia Park and connecting surrounding communities to its redevelopment. People for the park. Park for the people. Our community shows love for Anacostia Park by investing our time, our voices and our money into improving it.

Friends of Dyke Marsh

The Friends of Dyke Marsh is dedicated to preserving, protecting and restoring the Dyke Marsh Wildlife Preserve, in cooperation with the National Park Service, as a vital wildlife habitat, through education, science and stewardship. Our vision is that Dyke Marsh is once again a healthy, vital, self-sustaining, biodiverse ecosystem.

Friends of Kenilworth Aquatic Gardens is dedicated to ensuring the Gardens are a well-maintained, well-enjoyed, and welcoming park for neighbors and visitors. Friends is a 501c3 nonprofit organization that connects people to the Gardens through stewardship, public engagement, and educational programs in cooperation with the National Park Service.

Logo for Four Mile Run Conservatory Foundation

Four Mile Run Conservatory Foundation

The Four Mile Run Conservatory Foundation promotes nature, culture, and community at lower Four Mile Run through restoration, advocacy, recreation, and education. We envision lower Four Mile Run as a cherished community resource and a model for natural lands stewardship in an urban setting.

Friends of Kingman and Heritage Islands

We’re on a mission to:

  • Empower the communities surrounding Kingman and Heritage Islands to advocate this treasured green space.
  • Promote and advocate for educational, recreational, natural, and interpretive activities in Washington, D.C., principally on Heritage and Kingman Islands.
  • Encourage public interest in and use of Kingman and Heritage islands.
  • Focus public attention on the conservation of the Islands.  

Friends of Oxon Run Park

Our Mission is to address the needs of conservation of natural resources and preservation of green space in Ward 8.

Friends of Wolf Trap

Friends of Wolf Trap (FOWT) is a 501(c)(3) volunteer organization committed to supporting activities and efforts to enhance the Wolf Trap National Park for the Performing Arts’ greater potential for the study and preservation of natural resources, local history, and outdoor recreational uses not directly related to performance.

Citry of Alexandria Logo for Jerome Buddy Ford Nature Center

Jerome “Buddie” Ford Nature Center, City of Alexandria

The mission of the Jerome “Buddie” Ford Nature Center is to provide quality nature-based interpretive programs and services for City of Alexandria residents and aid in the management, conservation, and protection of Alexandria’s natural resources through informative recommendations and conservation projects.

Lyon Park Garden

Encircling the Lyon Park Community Center in Arlington, Virginia, this native plant garden is designed and maintained by community volunteers. With more than 100 Virginia native flower, shrub and tree species, this garden offers a year-round haven for native birds, butterflies and other pollinators.

Mallows Bay-Potomac River National Marine Sanctuary protects and interprets the remnants of more than 100 World War I-era wooden steamships – known as the “Ghost Fleet.” The ships emerge at low tide and provide habitat important to osprey, bald eagles, herons, and an array of fish, plants, and animals. With resources easily accessed by shore and water, this site is a living laboratory for people of all ages to learn about its history, heritage, and connected ecosystem.

Maryland Master Naturalist Program

Master Gardeners of Prince William (MGPW) is the supportive organization for active Master Gardener Volunteers in Prince William County, Manassas City and Manassas Park. There are approximately 200 active volunteer environmental educators serving in various capacities.  Volunteers and volunteerism are central to the MGPW mission as we strive to make our community a more sustainable, healthy and beautiful place to live and to educate residents about the many benefits of gardening, including the opportunity to grow nutritious, healthy food, environmentally friendly landscapes, all with the ultimate goal of protecting water quality in local waterways and the Chesapeake Bay.

Master Gardeners of Prince William

Master Gardeners of Prince William (MGPW) is the supportive organization for active Master Gardener Volunteers in Prince William County, Manassas City and Manassas Park. There are approximately 200 active volunteer environmental educators serving in various capacities.  Volunteers and volunteerism are central to the MGPW mission as we strive to make our community a more sustainable, healthy and beautiful place to live and to educate residents about the many benefits of gardening, including the opportunity to grow nutritious, healthy food, environmentally friendly landscapes, all with the ultimate goal of protecting water quality in local waterways and the Chesapeake Bay.

Montgomery Parks

Montgomery Parks is operated by the Maryland-National Capital Park and Planning Commission and manages more than 35,000 acres of parkland featuring 421 parks. We protect and interpret our valuable natural and cultural resources; balance the demand for recreation with the need for conservation; offer a variety of enjoyable recreational activities that encourage healthy lifestyles; and provide clean, safe and accessible places for leisure-time activities.

The Mycological Association of Washington, DC

The Mycological Association of Washington, DC (MAW) is a nonprofit club of amateur and professional mycologists. We study, forage, and cook wild mushrooms, and educate the public about fungi. Our events in DC, Maryland, and Virginia include monthly guest speakers, forays with expert identifiers, and members-only tasting events.

The National Geographic Society uses the power of science, exploration, education and storytelling to illuminate and protect the wonder of our world.

NOVA Parks

NOVA Parks – the best of Northern Virginia through nature, history, and great family experiences. We maintain a system of regional parks to preserve and protect regionally significant areas of exceptional natural, environmental, historic, cultural, recreational or aesthetic value, enhancing leisure time opportunities for Northern Virginians.

Outdoor Afro

Outdoor Afro has become the nation’s leading, cutting edge network that celebrates and inspires Black connections and leadership in nature. We are a national not for profit organization with leadership networks around the country. With more than 80 leaders in 42 cities around the country, we connect thousands of people to nature experiences, who are changing the face of conservation. So come out in nature with us, or be a partner to help us grow our work so that we can help lead the way for inclusion in outdoor recreation, nature, and conservation for all!

Plant NOVA Natives

Plant NOVA Natives is a joint marketing campaign of over sixty private, public, and non-profit organizations, and hundreds of individuals. Our mission is to educate the community and to promote the benefits to water quality and natural habitat of planting beautiful Northern Virginia natives, through the efforts of committed volunteers using multimedia outreach and events, and by working with local growers and sellers of native plants. All are welcome to participate in this collective action movement.

Prince Georges County Parks and Recreation

We maintain more than 27,000 acres of parkland throughout the county. A large percentage of County land has been left undeveloped to serve as buffers and to provide natural open spaces. 

Rock Creek Conservancy restores Rock Creek and its parklands for all people to appreciate and protect.

St Charles High School Green Team

We are a Green Team at St Charles High School in Charles County, MD Public Schools. Our goal is to empower our community to practice sustainability. We are getting our school MAEOE Green School Certified and creating cross-curricular lessons on energy creation and consumption, environmental issues, and ways to increase sustainability. Check our twitter page St Charles Green Team (@EasyEcoLiving) for updates.

Smithsonian National Museum of Natural History

Our mission is to promote understanding of the natural world and our place in it. The museum’s collections tell the history of the planet and are a record of human interaction with the environment and one another.

The mission of The Nature Conservancy is to conserve the lands and waters on which all life depends. Our vision is a world where the diversity of life thrives, and people act to conserve nature for its own sake and for its ability to fulfill our needs and enrich our lives.

Town of Chesapeake Beach and the Chesapeake Beach Green Team

The mission of the Chesapeake Beach Green Team is to promote a vibrant and sustainable Chesapeake Beach community that fosters long-term environmental and individual health, social well-being, and economic prosperity for its residents, businesses, and government.

Town of North Beach

The Town of North Beach is committed to creating a sustainable community. The town’s efforts are ongoing to preserve the wetlands, natural shoreline and green spaces so that residents and visitors may enjoy them now and in the future. The town promotes a healthy, attractive, sustainable North Beach through green initiatives and public education.

Tudor Place Historic House and Garden

The mission of Tudor Place Historic House & Garden is to preserve the stories of six generations of descendants of Martha Washington, and the enslaved and free people who lived and worked at this Georgetown landmark for nearly two centuries. By examining their legacy, we challenge ourselves and our visitors to celebrate the triumphs and to confront the complexities of the past. 

Virginia Master Naturalists – Banshee Reeks Chapter

Virginia Master Naturalists are volunteer educators, citizen scientists, and stewards helping Virginia conserve and manage natural resources and public lands.

Virginia Master Naturalists – Fairfax Chapter

The VA Master Naturalist program develops volunteers by offering knowledge and skills to enable them to provide education, outreach, and service for the beneficial management of natural resources and natural areas in the Fairfax County area. 

Virginia Master Naturalists – Merrimac Farm Chapter

The Merrimac Farm Master Naturalists are a chapter of the Virginia Master Naturalists located in Prince William County.  Our corps of trained and certified volunteers are visible  working with county, state and local environmental organizations.  We are busy conducting wildlife surveys, educational outreach and programs at schools, fairs and parks , and are stewards of the county pulling invasives, trail clearing and cleaning our streams, ponds and rivers of trash.  We are truly a “Force for Nature”!

The Virginia Outdoors Foundation’s (VOF) Bull Run Mountains Natural Area Preserve is approximately 2,350 acres that serves as a living laboratory and open-air museum in the backyard of our nation’s capital. The Virginia Outdoors Foundation is committed to protecting the mountain’s significance and sharing it with the public through managed access.