Areas
Parks, preserves, recreation areas, and more.
- Alpenglow Park
- Alpha Grasslands Wildlife Management Area
- Alpine Park
- Alpine Wildlife Sanctuary
- Alsea Bay Historic Interpretive Center
- Alston Park
- Alta Lake State Park
- Alta Mesa Park
- Alta Plaza Park
- Altadena Triangle Park
- Altura
- Alum Creek State Park
- Alvarado
- Alvarez 9th Street Park
- Alviso Marina County Park
- Amache National Historic Site
- Amador Park
- Amelia Island State Park
- Amelia Mayberry Park
- American Bottom Landing Willamette River Greenway
- American Memorial Park
- American River Parkway - Ancil Hoffman Park
- American River Parkway - Cal Expo Area
- American River Parkway - Discovery Park
- American River Parkway - Gristmill Area
- American River Parkway - Harrington Way Access
- American River Parkway - Howe Avenue Access Area
- American River Parkway - Howe Avenue North
- American River Parkway - Lower Sunrise Area
- American River Parkway - Paradise Beach Area
- American River Parkway - Rio Americano Area
- American River Parkway - River Bend Park Area
- American River Parkway - Rossmoor Bar Area
- American River Parkway - SARA Park
- American River Parkway - Sacramento Bar Area
- American River Parkway - Sailor Bar Area
- American River Parkway - Sarah Court Access
- American River Parkway - Upper Sunrise Area
- American River Parkway - Waterton Access
- American River Parkway - Watt Avenue Access
- American River Parkway - Watt Avenue North
- American River Parkway - Woodlake Area
- Amethyst Park
- Amigo Park
- Amistad National Recreation Area
- Ammonoosuc River Forest
- Amwell Lake Wildlife Management Area
- Anacostia Park
- Anastasia State Park
- Anchor Park
- Anchor River State Recreation Area
- Anclote Key Preserve State Park
- Andaloro Wildlife Management Area
- Andalucia
- Anderson Heights
- Anderson Highlands
- Anderson Lake County Park
- Anderson Lake State Park
- Anderson Marsh State Historic Park
- Anderson Mesa
- Anderson School
- Anderson's Landing (Managed by Manatee Springs State Park)
- Andersonville National Historic Site
- Andreoff Wildlife Area
- Andrew Brook Forest
- Andrew Johnson National Historic Site
- Andrew Molera State Park
- Andrews Park
- Andys Unity Park
- Angel Island State Park
- Angeles National Forest
- Angelina National Forest
- Angelo J. Rossi Playground
- Angst Nature Preserve MetroPark
- Aniakchak National Monument
- Aniakchak National Preserve
- Ansin Riverfront Conservation Area
- Antelope Valley California Poppy Reserve
- Antelope Valley California Poppy Reserve (State Natural Reserve)
- Antelope Valley Indian Museum (State Historic Park)
- Antelope Valley Indian Museum State Historic Park
- Anthony Chabot Regional Park
- Antietam National Battlefield
- Antioch Dunes National Wildlife Refuge
- Antioch/Oakley Regional Shoreline
- Antoine Peak Conservation Area
- Antonelli Pond
- Anza-Borrego Desert State Park
- Apache-Sitgreaves National Forests
- Apalachicola National Forest
- Apollo Community Regional Park
- Apostle Islands National Lakeshore
- Appalachian Hills Wildlife Area
- Appalachian National Scenic Trail
- Appalachian Trail
- Appert Lake National Wildlife Refuge
- Appleway Trail
- Appomattox Court House National Historical Park
- Aptos Playground
- Aquadome Park