Thunder Basin National Grassland wilderness guide
National Grassland · WY

Thunder Basin National Grassland

Thunder Basin National Grassland offers expansive mixed-grass prairie landscapes, rich wildlife, and diverse recreational opportunities including hiking, wildlife viewing, and scenic driving in northeast Wyoming.

National Grassland572,000+4+ Trails

Designation

National Grassland

Total Wilderness Area

572,000+

Elevation / Terrain

Diverse Wilderness

Field Editorial Guide

About Thunder Basin National Grassland

Thunder Basin National Grassland offers expansive mixed-grass prairie landscapes, rich wildlife, and diverse recreational opportunities including hiking, wildlife viewing, and scenic driving in northeast Wyoming.

Wilderness Landscape & Natural Heritage

Thunder Basin National Grassland encompasses over 572,000 acres in northeastern Wyoming, predominantly within Campbell, Converse, and Weston counties. The grassland lies at the transition zone between the Great Plains grasslands and the sagebrush steppe, providing a unique mix of prairie and shrubland ecosystems. This area is notable for its rolling hills, rugged canyons, and wide-open skies. The grassland features diverse habitats that support abundant wildlife such as pronghorn antelope, mule deer, coyotes, raptors, and numerous songbird species, making it a prime destination for wildlife enthusiasts and birdwatchers. Historically, the area was used for cattle grazing and has remnants of old homesteads and historic routes, including sections near the historic Bozeman Trail. Thunder Basin's management emphasizes multiple use, including cattle grazing balanced with conservation efforts. Visitors can explore a variety of recreational activities including hiking, mountain biking, horseback riding, and fishing in small reservoirs. The grassland's open landscape offers excellent opportunities for stargazing and photography. Several trail systems and scenic drives traverse the area, including the Thunder Basin National Grassland Main Road, offering access to remote backcountry experiences. The National Grassland is managed by the U.S. Forest Service as part of the Medicine Bow-Routt National Forests, focusing on preserving its ecological integrity while providing outdoor recreation access. Its relatively low visitation compared to national parks offers solitude and natural quiet for visitors.

Field Guide · National Grassland
Adventure Destinations

Notable Destinations Near Thunder Basin National Grassland

Scenic viewpoints, outdoor landmarks, and notable points of interest within 60 miles.

Key Wilderness Highlights

✦ Thunder Basin National Grassland Main Road – a scenic drive offering expansive prairie views and wildlife spotting✦ Ponderosa Pine stands interspersed with grasslands, unusual in the shortgrass plains✦ Abundant birdwatching opportunities with species like sage grouse, ferruginous hawks, and mourning doves✦ Remote hiking trails such as the South Piney Trail that meander through rugged terrain
Wilderness Recreation

Outdoor Adventures in Thunder Basin National Grassland

Explore curated guides for top outdoor sports, trail networks, and wilderness activities.

Park Recreation

Hiking

Available in Thunder Basin National Grassland
Park Recreation

Camping

Available in Thunder Basin National Grassland
Park Recreation

Wildlife Viewing

Available in Thunder Basin National Grassland
Park Recreation

Mountain Biking

Available in Thunder Basin National Grassland
Park Recreation

Fishing

Available in Thunder Basin National Grassland
Park Recreation

Scenic Drives

Available in Thunder Basin National Grassland
Park Recreation

Photography

Available in Thunder Basin National Grassland
Park Recreation

Horseback Riding

Available in Thunder Basin National Grassland
The Ranger Station

Visitor Logistics & Essential Planning

Everything you need to know about entrance passes, seasons, visitor centers, road transit, and wildlife safety in Thunder Basin National Grassland.

Passes & Fees

Entrance Requirements & Interagency Passes

No permits or entrance fees required for general access; some campgrounds may require reservations.

Wilderness Checklist

Carry paper topographic map & compass in remote zones.
Store all food and scented items in approved bear canisters.
Check wildfire / smoke advisories before backcountry departure.
Pack out everything you pack in (Leave No Trace).
Wilderness Stays

Camping & Overnight Stays in Thunder Basin National Grassland

Frontcountry developed campgrounds, backcountry wilderness permit guidelines, and starry-night camping advice.

Rattlesnake Campground

Small, primitive campground located near the South Piney Trailhead with basic amenities and excellent access to hiking.

Roundtop Campground

Developed campground close to paved roads with sites for tents and RVs, offering nearby fishing access.

Expert-Led Wilderness Expeditions

Guided Experiences in Thunder Basin National Grassland

Explore scenic backcountry routes and epic wilderness adventures with certified local mountain guides, naturalists, and outfitters.