Groundwork USA, a national organization that partners with the National Park Service and Environmental Protection Agency, assists a network of 20 nonprofits known as Groundwork Trusts. Trusts are formed in communities struggling with environmental, economic and social decline and work to transform brownfields and underutilized land into parks, trails, community gardens and other public green spaces.

Established in the United States by the National Park Service – Rivers, Trails and Conservation Assistance program and the Environmental Protection Agency’s Brownfields Program, the Groundwork program carries out a mission that aligns with the values of the National Park Service to protect natural and cultural resources and encourage outdoor recreation by supporting community-driven revitalization projects across the country.