Unit 126 Lost Springs (Area 126)
A huge, private-dominated eastern-plains unit of grassland, sage breaks and cottonwood river bottoms
Thunder Basin / Eastern Plains · Last reviewed 2026-07-12
Area
5,497
sq mi
Public land
18%
approx.
Elevation
4,000–6,000
feet
Motorized
extensive
access
Overview
Hunt Area 126 — Lost Springs — sprawls across the eastern Wyoming plains through Converse, Niobrara and Weston counties, on the southern reach of the Powder River Basin and the Thunder Basin National Grassland between the Bighorns and the Black Hills. It is an enormous, mostly-private ranch landscape of rolling grassland, sagebrush draws, pine-studded breaks and cottonwood river bottoms. Pronghorn blanket the open country, mule deer hold the draws and breaks, whitetail work the river and creek bottoms, and elk occur at low, spreading density that can be hard to pin down. Success here hinges on lining up access across a lot of deeded ground.
Terrain
Wide, gently rolling shortgrass and sage plains broken by creek breaks, badland draws, scattered ponderosa ridges and cottonwood-lined river bottoms; very accessible, low-relief country with big open views.
Cover: Mixed-grass prairie, big sagebrush and greasewood over the uplands; ponderosa pine on the breaks and ridges; cottonwood, willow and brush along the North Platte, Cheyenne River, Lance Creek and lesser drainages.
Landmarks: Thunder Basin National Grassland · town of Lost Springs · Cheyenne River · Lance Creek · North Platte River corridor · Rochelle Hills / prairie breaks
Access
Roughly 82% private and 18% public (about 8% state, 6% BLM, 4% USFS grassland), and the public is scattered among the deeded ranches rather than blocked up. Only non-tribal fee-title lands are open to hunting on a Wyoming license. Expect to rely on landowner permission, Hunter Management / walk-in areas, leases, or the accessible pockets of Thunder Basin National Grassland and state parcels. Confirm every section boundary — much public is landlocked behind private.
Managers: private ranch, WY state trust, BLM, USFS Thunder Basin National Grassland
Access points: US-18/20 and US-85 corridors from Lusk and Douglas · WY-270 / Lance Creek Road · Thunder Basin National Grassland roads north toward Bill · State and BLM parcels reached via county roads — verify legal access
Species notes
Pronghorn
abundant qualityClassic eastern-Wyoming antelope country with very high densities across the grassland and sage; the marquee opportunity, with strong buck numbers where you can secure access.
- →Drive county roads to locate herds, then plan a foot stalk using draws and folds
- →Glass from high points across the rolling plains at first and last light
- →Hunt water — stock ponds and creeks — in the warm early season
- →Use the terrain breaks to close distance on wary bucks in open country
Mule Deer
common opportunityMule deer hold in the sagebrush draws, creek breaks and pine ridges of the Thunder Basin country; honest opportunity with the occasional good buck where access allows.
- →Still-hunt the breaks and draw heads at dawn and dusk
- →Glass sage-and-pine transition on the ridges
- →Focus on cover near feed and water in the open plains
Whitetail Deer
common opportunityWhitetail occupy the cottonwood bottoms and brushy creek corridors along the North Platte, Cheyenne River and Lance Creek — the classic eastern-plains river-bottom whitetail hunt.
- →Hunt the cottonwood and brush edges along river and creek bottoms
- →Set up on trails between bedding brush and ag/hay feed
- →Rut activity in the bottoms improves daytime movement — a permission hunt on the right ranch pays off
Rocky Mountain Elk
limited opportunityLow, scattered elk densities spreading through the grassland and breaks; a non-herd unit where locating a huntable group across the huge private landscape is the main challenge.
- →Scout widely and follow current sign — elk shift and concentrate unpredictably
- →Focus on the more remote grassland breaks and private ground you can access
- →Be patient and prepared to cover a lot of country
Pro tips
- →Access is everything — line up landowner permission, walk-in/HMA areas or verified public parcels before you go
- →Only non-tribal fee-title land is open to Wyoming-license hunting; check status of every parcel
- →Hunt the river and creek bottoms for whitetail and the sage/pine breaks for mule deer, while the open grass holds the antelope
- →Glass from high ground and use the subtle draws to stalk pronghorn across seemingly flat country
- →Watch the weather — wet gumbo can shut down the plains roads fast
Watch out for
- !~82% private land — access is the primary limiting factor
- !Scattered and often landlocked public parcels; verify legal access
- !Only non-Indian fee-title lands open to hunting on a WY license
- !Gumbo roads become impassable when wet
- !Open, exposed country with high wind and few services deep in the unit
Logistics
This is remote ranch country with few services deep in the unit — Lusk, Douglas and Newcastle are the practical bases for fuel, lodging and groceries. Cell coverage is spotty off the highways. The plains roads are generally good gravel and dirt but turn to slick gumbo when wet. A high-clearance vehicle and self-sufficiency (water, extra fuel, recovery gear) are recommended.
Nearest towns: Lusk, Douglas, Newcastle, Wheatland, Glenrock
Seasons & regulations
This page carries no season dates or regulations. Get current rules from the official Wyoming sources:
Research sources: WGFD Hunt Planner · HuntScore — Wyoming Hunt Area 126 Lost Springs (land ownership / boundary) · Thunder Basin National Grassland — Wikipedia · Converse County Tourism — Wildlife Watching
FAQ
- How big is Unit 126 in Wyoming?
- Unit 126 (Lost Springs (Area 126)) covers about 5,497 square miles, ranging from roughly 4,000 to 6,000 feet in elevation. Area is computed from the unit boundary polygon.
- How much public land is in Unit 126?
- Approximately 18% of the unit is public land. Primary managers: private ranch, WY state trust, BLM, USFS Thunder Basin National Grassland. Always verify ownership boundaries on the ground.
- What species does the catalog list for Unit 126?
- Pronghorn, Mule Deer, Whitetail Deer, Rocky Mountain Elk. For seasons, tags, and regulations, use the official Wyoming agency resources linked on this page — this page carries no regulatory information.
Put Unit 126 on your map.
Boundary lines, public/private ownership, topo, and offline maps for this unit — in Baseline Maps, free for 14 days.