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3,603 parks
Hagerman Fossil Beds National Monument
Idaho
During the Pliocene, this place looked quite different. Lush wetlands, forests, and grasslands provided excell…
Hagerman Fossil Beds National Monument
Idaho
During the Pliocene, this place looked quite different. Lush wetlands, forests, and grasslands provided excell…
Hagerman National Wildlife Refuge
Oklahoma
Hagerman National Wildlife Refuge was established in 1946 to provide habitat for migratory birds, wildlife, an…
Hakalau Forest National Wildlife Refuge
Hawaii
Hakalau Forest NWR contains some of the finest remaining stands of native montane rain forest in Hawai‘i. The …
Haleakala National Park
Hawaii
This special place vibrates with stories of ancient and modern Hawaiian culture and protects the bond between …
Halfway Hollow Trail System
Utah
Tucked into the desert mesas northwest of Vernal, the Halfway Hollow Trail System is a multi-use network open …
Hamden Slough National Wildlife Refuge
Minnesota
Eastern forest dramatically gives way to the western prairie at Hamden Slough National Wildlife Refuge which w…
Hamilton Grange National Memorial
New York
Merchant’s clerk, Revolutionary War soldier, first Secretary Treasury of the United States: Alexander Hamilton…
Hampton National Historic Site
Maryland
Once possibly the largest private home in America by 1790, the Hampton mansion serves as a grand example of la…
Hampton National Historic Site
Maryland
Hampton National Historic Site preserves what remains of a once 25,000-acre enslavement plantation. For hundre…
Hanalei National Wildlife Refuge
Hawaii
Kauaʻi has three wildlife refuges, Hanalei, Hulēʻia, and Kīlauea Point, managed by the U.S. Fish & Wildlife Se…
Hancock Brook Lake
Connecticut
This shallow 40-acre lake and streamside environment provides excellent hiking, hunting, canoeing and fishing …
Handy Brake National Wildlife Refuge
Louisiana
Handy Brake National Wildlife Refuge is located just north of Bastrop in Morehouse Parish, north central Louis…
Happy Boulders
California
Happy Boulders The Volcanic Tableland offers exceptional bouldering opportunities. 750,000 years ago, catacly…
Harbor Island National Wildlife Refuge
Michigan
Harbor Island National Wildlife Refuge consists of two islands, Harbor and Standerson Islands. These islands a…
Harcuvar Mountains Wilderness
Arizona
The 25,050-acre Harcuvar Mountains Wilderness in Arizona is managed by the Bureau of Land Management. In 1990,…
Hardscrabble - East Eagle
Colorado
Hardscrabble Special Recreation Management Area (SRMA) is located between Gypsum and Eagle, and has become a t…
Harlan County Lake
Kansas
Year round recreational opportunities are available at Nebraska's second largest lake. Fishing, Hunting, Sight…
Harmony Hall
Maryland
The 18th century Harmony Hall mansion is located on a 62.5-acre open pasture land estate along the Potomac Riv…
Harmony Hall
District of Columbia
The 18th century Harmony Hall mansion is located on a 62.5-acre open pasture land estate along the Potomac Riv…
Harper Dry Lake
California
Overview Harper Lake Subregion covers nearly 115,000 acres of mixed public and private lands. Located northwe…
Harpers Ferry National Historical Park
District of Columbia
At the confluence of the Shenandoah and Potomac rivers, on the ancestral home of the Tuscarora and Shawnee peo…
Harpers Ferry National Historical Park
West Virginia
Find yourself at the confluence of history and nature. Experience John Brown's Raid, a flash point that ignite…
Harquahala Mountains Wilderness
Arizona
The 22,880-acre Harquahala Mountains Wilderness lies in Maricopa and La Paz counties, 80 miles northwest of Ph…