Montana’s big-sky country stretches from glacier-carved peaks to river valleys and thermal basins, where mountains, wildlife and scenic drives meet in wide, open spaces. Trails and overlooks here range from short day hikes to multi-day backcountry routes, offering practical options for different trip lengths.
There are 2 National Parks in Montana, ranging from Glacier National Park to Yellowstone National Park; for each, you’ll find Area (km^2),Location (counties / nearest town),Highlights (max 15 words) summarized — you’ll find below.
Are both Glacier and Yellowstone entirely in Montana?
No — Glacier National Park lies fully within Montana, while Yellowstone is mostly in Wyoming with portions extending into Montana (and a small part in Idaho). That means Montana provides key access points and entrances, but check which state your planned trailheads or lodging fall in.
When should I visit each park for road access and wildlife viewing?
Glacier’s main season is roughly mid‑June to mid‑September when Going‑to‑the‑Sun Road and many trails are open; spring and fall offer fewer crowds but limited services. Yellowstone is busiest in summer, great for hiking and full services, while spring and fall boost wildlife sightings; winter opens different activities but closes many roads. Check park alerts before you go.
National Parks in Montana
Name | Area (km^2) | Location (counties / nearest town) | Highlights (max 15 words) |
---|---|---|---|
Glacier National Park | 4,100.77 | Flathead, Glacier / West Glacier (west), St. Mary (east) | Jagged peaks, glaciers, Going-to-the-Sun Road, alpine lakes, abundant wildlife |
Yellowstone National Park | 8,983.18 | Park, Gallatin / Gardiner (north), West Yellowstone (west) | Geothermal features (Old Faithful), canyons, waterfalls, abundant wildlife, vast wilderness |
Images and Descriptions

Glacier National Park
Glacier National Park lies entirely in northwest Montana, mainly in Flathead and Glacier counties. Nearest gateway towns and entrances include West Glacier, Apgar, East Glacier Park Village, and Whitefish. The park covers about 4,101 km^2. It features jagged peaks, alpine lakes, remnant glaciers, the Going-to-the-Sun Road, and abundant wildlife. Best visited in summer for road access and hiking; many roads and facilities close in winter. The park charges an entrance fee; check the NPS site for current rates and alerts. Included because it is the primary national park fully inside Montana. NPS: https://www.nps.gov/glac/index.htm

Yellowstone National Park
Yellowstone National Park spans Wyoming, Montana, and Idaho. Montana portions sit mainly in Park and Gallatin counties. Nearest Montana gateway towns and entrances include Gardiner (North Entrance) and West Yellowstone (West Entrance). The park covers about 8,983 km^2 in total. It features geysers (Old Faithful), hot springs, mud pots, the Grand Canyon of the Yellowstone, Yellowstone Lake, and rich wildlife. Best visited in summer for full road access; winter access is limited and requires snow travel. The park charges an entrance fee; check the NPS site for current rates. Included because part of this iconic park lies in Montana. NPS: https://www.nps.gov/yell/index.htm