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2,085 parks
Iditarod National Historic Trail Recreation Management Area
Alaska
The Iditarod National Historic Trail celebrates a 2,300-mile system of winter routes that first connected anci…
Ignacio Chavez Special Management Area
New Mexico
The Ignacio Chavez Special Management Area (SMA) consists primarily of two Wilderness Study Areas -- the Ignac…
Illinois River - Riverlands
Illinois
The Rivers Project is responsible for the operation and maintenance of five dams and seven locks, 300 miles of…
Illinois Waterway
Illinois
Ever want to see the operation of a lock and dam? The Illinois Waterway Visitor Center offers you that as well…
Imperial Dam Long Term Visitor Area
Arizona
The Imperial Dam Long Term Visitor Area (LTVA) was created in 1983 to fulfill the needs of winter visitors and…
Imperial National Wildlife Refuge
Arizona
Imperial National Wildlife Refuge was established by Executive Order 8685 on February 14, 1941. The 25,768-acr…
Imperial Sand Dunes
Arizona
OverviewLocated in the southeast corner of California, the Imperial Sand Dunes are the largest mass of sand du…
Independence National Historical Park
New Jersey
The park represents the founding ideals of the nation, and preserves national and international symbols of fre…
Indian Bread Rocks Picnic Area
Arizona
Consisting of the rugged slopes of the Dos Cabezas Mountains, elevations range from 4,080 feet to 7,500 feet, …
Indian Creek Recreation Area
California
Situated in the eastern foothills of the Sierra Nevada, Indian Creek Recreation Area offers a variety of outdo…
Indian Pass Wilderness
Arizona
The Indian Pass Wilderness now contains a total of 32,418 acres and is managed by the Bureau of Land Managemen…
Indiana Dunes National Park
Indiana
Lake Michigan's might has influenced Indiana Dunes for millennia. Wind and waves have shaped the land, leaving…
Inyo National Forest
California
Iñupiat Heritage Center
Alaska
On the rooftop of the world, the Iñupiat Heritage Center in Barrow, Alaska, tells the story of the Iñupiat peo…
Iron Hills Trail System
Utah
The Iron Hills Trail System is a 30-mile network of beginner, intermediate, and advanced trails located on Bur…
Iron Mountain Divisional Camp -Patton
Arizona
This site was designated as an ACEC due to the historical significance of the area. Camp Iron Mountain is the…
Ironwood Forest National Monument
Arizona
The Ironwood Forest National Monument, which takes its name from one of the longest living trees in the Arizon…
Iroquois National Wildlife Refuge
Pennsylvania
Our namesake comes from the Iroquois (Haudenosaunee) Confederacy, a powerful and enduring alliance that has th…
Island Park Reservoir
Montana
Island Park Reservoir which is formed by Island Park Dam is a major feature of the Mindoka Project. Recreatio…
Isle Royale National Park
Wisconsin
Explore a rugged, isolated island far from our connected communities. Isle Royale offers adventures for backpa…
J Percy Priest Lake
Tennessee
The Nashville District U.S. Army Corps of Engineers welcomes you to J. Percy Priest Lake. The lake provides a…
J. Clark Salyer Wetland Management District
North Dakota
The J. Clark Salyer Wetland Management District was formed to manage Waterfowl Production Areas. Established t…
J. Edward Roush Lake
Indiana
J. Edward Roush Lake (formerly Huntington): of the 20 lakes in the Louisville District, J. Edward Roush Lake h…
Jack Creek Trail
Alaska
The Jack River Trail is located at mile 131 of the Denali Highway, approximately four miles east of Cantwell, …