A wagon travels along the California and Oregon National Historic Trails in Wyoming.

National Conservation Lands

The BLM's twenty year old National Conservation Lands currently includes 905 units covering over 37 million acres designated by Congress and the President to conserve special features, from winding rivers to mountain vistas. The National Conservation Lands offer the American people exceptional opportunities for hunting, solitude, wildlife viewing, fishing, history exploration, scientific research and a wide range of traditional uses. The BLM manages these public lands for the benefit of current and future generations, supporting conservation as a part of the BLM's multiple-use and sustained yield mission. This means respecting the ties that native and traditional communities have to public lands, as well as being welcoming of diverse interests and uses.

National Monuments

The BLM’s National Conservation Lands include beautiful and diverse national monuments in nine western states.  The Antiquities Act of 1906 grants the President authority to designate national monuments to protect “objects of historic or scientific interest.”  While the President establishes most national monuments, Congress occasionally establishes national monuments to protect certain natural or historic features.  Since 1906, Presidents and Congress have designated a total of 161 national monuments, 30 of which are maintained by the BLM.  Other agencies that manage national monuments are the National Park Service, the Forest Service, and the Fish & Wildlife Service. The latest available summary report can be found here or on the Maps, Data, and Resources Page.

Learn more about National Monuments

Browse the National Conservation Lands region pages and area site pages for more information about national monuments and other National Conservation Lands areas.

National Conservation Areas and Similar Designations

The BLM’s National Conservation Lands include National Conservation Areas and Similar Designations. Congress designates National Conservation Areas (NCAs) and similarly designated lands to conserve, protect, enhance, and manage the public lands for the benefit and enjoyment of present and future generations.  The BLM’s National Conservation Lands include 20 NCAs and five similarly designated lands in 10 states.  These lands offer exceptional scientific, cultural, ecological, historical, and recreational value.  They differ in landscape and size, varying from the coastal beauty of California's 18-acre Piedras Blancas Light Station Outstanding Natural Area to the rugged desert vistas of Nevada's 1.2 million-acre Black Rock Desert-High Rock Canyon Emigrant Trails NCA. 

Congress also designates other areas similar to NCAs under four categories: Cooperative Management and Protection Areas, Outstanding Natural Areas, Forest Reserves and National Scenic Areas.  These public lands are managed similarly to NCAs and also offer exceptional natural and cultural values. The latest available information can be found here or on the Maps, Data and Resources Page.

About National Conservation Areas

Browse BLM's National Conservation Lands and Similar Designations by state or region.

National Scenic and Historic Trails

The 1965 “Conservation and Preservation of Natural Beauty” speech by President Lyndon Johnson inspired a movement and in 1968 Congress established the National Trails System Act. The Appalachian and Pacific Crest trails were the first congressionally designated National Trails in the National Trails System. Today there are 30 congressionally designated National Scenic and Historic Trails, many within an hour's drive from most urban areas.  

hiker and dog peer over vast landscape with mountains in background
Pacific Crest National Scenic Trail

Learn more about NSHT

Wild and Scenic Rivers

Signed in 1968, the Wild and Scenic Rivers Act protects more than 200 rivers in 40 states and Puerto Rico. Wild and Scenic Rivers are designated into the National Wild and Scenic Rivers System to preserve their free-flowing condition and to protect and enhance their outstandingly remarkable scenic, recreational, geologic, fish, wildlife, historic, cultural, and other similar values.

Upper Missouri Wild and Scenic River
Upper Missouri Wild and Scenic River

Learn more about WSR

Wilderness and Wilderness Study Areas

The Bureau of Land Management is responsible for 263 wilderness areas and 487 wilderness study areas in the western States and Alaska. From primitive hunting locations to remote fishing spots, wilderness and Wilderness Study Areas provide unparalleled opportunities for spending time outdoors.

a broad landscape with desert shrubs with distant orange colored cliffs and clouds overhead

Learn more about Wilderness and WSAs 

15-Year Strategy

Primarily located in the West, the BLM’s National Conservation Lands represent some of the West’s most spectacular landscapes. They provide abundant recreational opportunities, important scientific research grounds, and outstanding ecological and cultural resources.

Learn more about the 15-Year Strategy

Maps and Data

Maps reveal the breadth and diversity of the National Conservation Lands.

 Learn more about national-level maps and data

Scientific Research

National Conservation Lands comprise a natural scientific laboratory that attracts scientists from around the world.  The scientific values found within many National Conservation Lands units open the door to valuable research on topics ranging from geology, paleontology, archaeology and history to biology, botany and ecosystem studies.

Careers in Demand: Biological Sciences

Learn more about Scientific Research on BLM managed lands