Anacostia Park

The state of ash trees in 2017 in the National Capital Region after more than 10 years of harm from the invasive emerald ash borer.

Emerald ash borer (EAB) has killed most of the 300,000 ash trees in National Capital Region parks since 2014. Fewer than 80,000 living ash trees remain. Some ash-dominated swamps transformed into shrublands as ash root systems re-sprouted after EAB attack. In dry habitats, EAB proved more quickly fatal.

Emerald ash borer are still decimating ash trees in the National Capital Region. Read on for the latest look into the state of ash trees in our parks based on forest monitoring data.

In the depths of the Great Depression, a dramatic showdown between jobless WWI veterans, lawmakers, the police, and the Army played out in Washington, DC.

Learn about the Brood X periodical cicadas that emerged in 2021 throughout the Mid-Atlantic U.S.

National parks in the National Capital Region are experiencing a powerful wave of restoration— from power-washing monuments and scrubbing benches to removing invasive plants and helping connect vulnerable residents with social services. It’s a renewed commitment to both the places and people of Washington, D.C.

Learn about Christmas berry (Photinia villosa), an invasive shrub considered an early detection rapid response species in the greater Washington, DC region in 2024.

The Anacostia Urban Waters Partnership works with local stakeholder groups to understand their organizations and share how the federal agencies can support local goals and objectives.