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Foss Reservoir
Oklahoma
Foss Dam and Reservoir, on the Washita River in Custer County, provide regulation of the river flows and munic…

Fossil Butte National Monument
Wyoming
Some of the world's best preserved fossils are found in the flat-topped ridges of southwestern Wyoming's cold …

Fossil Butte National Monument
Utah
In the ridges of southwest Wyoming are some of the best-preserved fossils in the world. They tell the story of…

Fossil Creek OHV Trail
Idaho
The Owyhee Front is a popular area offering a wide range of off-highway vehicle (OHV) trails including single-…

Fossil Creek Trail
Alaska
Fossil Creek Trail, in the White Mountains National Recreation Area, is an 18.8-mile trail maintained for wint…

Fossil Gap Trail
Alaska
The Fossil Gap Trail, in the White Mountains National Recreation Area, is maintained for winter recreation inc…

Fossil Mountain
Utah
Special Features: The Fish Creek Range is a tilted fault block of sedimentary rocks, and includes bedding pl…

Foster Joseph Sayers Dam
Pennsylvania
Bald Eagle State Park provides a marina, campground, picnic areas, and beach at this 1,730-acre lake. A histor…

Foster Lake
Oregon
Located in the beautiful Willamette Valley on the South Santiam River, Foster Lake provides boating, swimming …

Four Bear Trail
Montana
The Four Bear Trailhead provides access to the Four Bear Trail that is suitable for horseback riding, hiking, …

Four Dances SRMA
Montana
Through cooperative efforts, landowners, the Yellowstone River Parks Association, and the Bureau of Land Manag…

Fox River National Wildlife Refuge
Wisconsin
Fox River National Wildlife Refuge encompasses 1,054 acres of wetland and upland habitat along the Fox River i…

Frances Perkins National Monument
Maine
Known as the first woman to hold a presidential cabinet position and the “Woman behind the New Deal,” Frances …
Francis E. Walter Dam
Pennsylvania
Francis E. Walter Dam ? An 1,800-acre project, having a small 80 acre reservoir but no Corps-operated recreati…

Francis Marion and Sumter National Forests
South Carolina
Spanning from the Lowcountry coast to the Blue Ridge escarpment, Francis Marion and Sumter National Forests of…

Frank Church-River of No Return Wilderness
Idaho
The largest contiguous wilderness in the lower 48 states. Contains the Main Salmon River, Middle Fork of the S…

Frank Church-River of No Return Wilderness
Idaho
The Frank Church-River of No Return Wilderness now contains a total of 2,366,757 acres and is managed by the B…

Franklin D. Roosevelt Lake
Washington
Formed by Grand Coulee Dam and part of the Columbia Basin Project, this lake contains over 60,000 water-surfac…

Franklin Delano Roosevelt Memorial
District of Columbia
These words by President Franklin Delano Roosevelt ushered the United States into World War II and defined wha…

Franklin Delano Roosevelt Memorial Memorial
District of Columbia
These words by President Franklin Delano Roosevelt ushered the United States into World War II and defined wha…

Franklin Falls Dam
New Hampshire
Sited on the Pemigewasset River near Franklin, this recreation area drains a 1,000 square-mile watershed that …

Franklin Island National Wildlife Refuge
Maine
Franklin island was acquired by the U.S. Government in 1806 and the construction of the lighthouse was complet…

Franz Lake National Wildlife Refuge
Oregon
Franz Lake National Wildlife Refuge is the largest and most intact wapato and rush marsh remaining on the lowe…

Frederick Douglass National Historic Site
District of Columbia
Frederick Douglass spent his life fighting for justice and equality. Born into slavery in 1818, he escaped as …