By state · ID

National Parks in Idaho.

By Nicholas Major · Last updated

Idaho has the small southwestern corner of Yellowstone National Park plus Craters of the Moon National Monument & Preserve, Hagerman Fossil Beds National Monument, City of Rocks National Reserve, Nez Perce National Historical Park (multi-state), and Minidoka National Historic Site. Boise (BOI) anchors the southern network; Idaho Falls (IDA) reaches Craters of the Moon and the Yellowstone corner. Craters of the Moon is the state's headline standalone NPS unit, vast basalt lava flows from eruptions roughly 2,000 to 15,000 years old; the Loop Drive operates roughly mid-April through mid-November with seasonal variation. Yellowstone's Idaho portion has no developed visitor facilities: most Yellowstone visits enter via Wyoming or Montana. The state's high-elevation parks are summer-and-fall destinations; Boise itself sits at a meaningfully lower elevation and has a longer year-round shoulder.

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Idaho map with place names

Idaho National Parks map: labeled satellite map, showing 1 locations: Yellowstone
Idaho's 1 designated National Park. Dots mark general locations, not entrances. This map does not show every NPS source record in the directory below. Map: National Sites Guide, CC BY 4.0.

Customize or download the Idaho map. Change the names, pins and background, or download a ready-made PNG or SVG.

NPS source records in Idaho.

Idaho has 10 records in our combined NPS metadata and visitor-statistics registry: 3 National Historic Trails · 1 National Reserve · 1 National Monument & Preserve · 1 National Monument · 1 National Geologic Trail · 1 National Historic Site · 1 National Historical Park · 1 National Park. This is a source-record count, not the Park Service's official system-unit census. Combined 5-year-average annual visits: 5,185,477 (multi-state units count their full visits in every state they touch, see methodology). The most-visited record is Yellowstone National Park at about 4.43M annual visits.

Map of the broader NPS source-record directory
Every National Park Service site in Idaho, mapped. Each glowing marker is one site, placed at its real coordinates and colored by type. Select a marker for its yearly visits and a link, or use the filters to show or hide a group. 6 of 10 units are mapped here; long-distance trails and units centered in another state are in the table below.
National Park Service sites in Idaho, mapped Interactive map of Idaho showing the location of 6 National Park Service sites, colored by type: national parks, monuments and memorials, historic sites, recreation areas and seashores, rivers, trails and parkways, and other sites. It includes the National Park Yellowstone National Park. Each site is also listed with its yearly visits in the table below the map.

Marker positions are each unit's official NPS coordinates. State outline: U.S. Census cartographic boundary (public domain). Independent site, not affiliated with the National Park Service.

UnitDesignation5-yr avg visitsBusiest month
Yellowstone National Park National ParkYELL 4,431,841 July
Nez Perce National Historical Park National Historical ParkNEPE 343,582 June
Craters Of The Moon National Monument & Preserve National Monument & PreserveCRMO 268,147 July
City Of Rocks National Reserve National ReserveCIRO 90,856 June
Hagerman Fossil Beds National Monument National MonumentHAFO 28,515 July
Minidoka National Historic Site National Historic SiteMIIN 22,536 July
California National Historic Trail National Historic TrailCALI — —
Ice Age Floods National Geologic Trail National Geologic TrailIAFL — —
Lewis & Clark National Historic Trail National Historic TrailLECL — —
Oregon National Historic Trail National Historic TrailOREG — —

Methodology

Rows come from our combined NPS metadata and Visitor Use Statistics registry, not the Park Service's official census of 433 managed system units. Per-record visit counts come from the official NPS Visitor Use Statistics Data Package, 2025; the "5-year average visits" column is the mean of 2021-2025 Recreation Visits. Multi-state records are listed under every state they touch, and their full visit total appears in each state. Official National Park counts use the central 63-park classification rather than the source designation label alone. Independent site, not affiliated with the National Park Service.

Adjacent reading

Independence

Independent site. Not affiliated with or endorsed by the National Park Service. Data comes from the official NPS Visitor Use Statistics Data Package, 2025; editorial analysis is ours. The NPS Arrowhead and other NPS marks are not used.

Last updated · 2026-09-10