SU SLEEPER UNITS Wyoming Wyoming Unit 104 Hunt Planner Draw Odds
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Unit 104

3-D satellite terrain of Unit 104, served by Wayward — the free iPhone GPS app from the people behind Sleeper Units. Drag to turn, scroll or pinch to zoom. Get Wayward and the whole unit rides on your phone, offline.

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Area 104 covers the country around Powell in the northern Bighorn Basin—heavily agricultural country running between the Shoshone River and the Wyoming-Montana line, with the Heart Mountain area on the western edge and irrigated farmland dominating most of the unit. Elevations run from about 4,200 feet along the Shoshone to 5,500 feet on the surrounding sage benches. The country is mostly irrigated ag: sugar beets, malt barley, alfalfa, dry beans, and corn on the wheel-line and pivot ground, with cottonwood-and-willow bottoms along the Shoshone and the irrigation canals and dry sage benches between the cultivated fields. The Heart Mountain WWII Japanese-American internment site is preserved on the western edge—the country has more history than the empty horizon suggests. Polecat Bench and the surrounding badlands break the cultivated monotony in places. Mostly private ag and ranch ground with thin scatters of BLM and state. The HMA and Walk-In programs open critical access on private—without them this is a tough unit to hunt because the public ground is genuinely sparse. US-14A and county roads thread the country. Powell is the supply town—gas, motels, real grocery, the Northwest College campus—and Cody is 30 minutes west for any larger needs. Cell service is fair throughout. Whitetail dominate the river bottoms and irrigated edges; antelope work the open sage and stubble fields; mule deer use the badland breaks. The country is genuinely good for whitetail by Wyoming standards.

Unit Stats

Hunting Season Temps (3-yr avg)

Sep
64°
42°
Oct
48°
28°
Nov
33°
16°
Dec
26°
12°
Jan
24°
11°
Feb
23°
10°

Recent Trophy Scores · 2020–2025

Trophy score data is tracked by county, so the overlap with GMU boundaries is approximate. These numbers tell you whether the area is capable of growing big animals — they do not indicate public vs. private land. Big elk can come from anywhere; most elk in the lower 48 trace back to Yellowstone stock that was transplanted west after the species was nearly extirpated in the early 1900s.

CountySpeciesMethodCountAvg ScoreTop Score
LincolnElkArchery5316330
LincolnMule DeerArchery1185185
LincolnMule DeerRifle1181181
LincolnPronghornArchery67177
LincolnPronghornRifle28385
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Nearest Towns

CasperFull services: gas, groceries (Walmart, Albertsons, Ridley's), lodging, hospital (Wyoming Medical Center). Largest central WY city.
GlenrockSmall town; gas, groceries, lodging. 20 mi E of Casper on I-25.
ThermopolisFull services: gas, groceries, lodging, hot springs. Gateway to Owl Creek Mountains.
ShoshoniSmall town; gas, basic supplies. Junction of US-20 and US-26.
LuskSmall town; gas, groceries, lodging. Eastern staging for units 18, 108-110.
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Campgrounds

Casper Mountain CampgroundNatrona County ParksCasper Mountain; 39 sites; 8,000 ft; popular local hunting base.
Grave Springs CampgroundBLMSouth of Casper; 5 sites; convenient BLM staging area.
Boysen State ParkWY State ParksNear Shoshoni; multiple loops along Boysen Reservoir. Good base for central WY hunts.
Wind River Canyon CampgroundVariousBetween Shoshoni and Thermopolis; scenic canyon; limited sites.
Dispersed campingBLM / USFSAbundant BLM land in central Wyoming; also available on Casper Mountain and in the Bighorn foothills.
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Statewide Outfitters & Directories

These outfitters operate statewide or in multiple regions. Check each one's website to confirm they cover Unit 104.

Pinedale, WY. Bridger Wilderness. Since 1976 (48 years). Elk, deer, bear, moose, antelope. 80% return/referral clients. Guide of the Year awards.
Douglas, WY. 300,000 acres, Area 7. License #BG 063. Trophy elk, deer, antelope, bear, birds. MBNF permitted.
Western WY. Pack-in wilderness + drive-in camps. 80% bull elk success (2024). Documented results 2009-2025. Elk, deer, sheep, moose, lion.
Cody, WY. East Yellowstone highway. Absaroka Range pack-in hunts. Elk, mule deer, bear. Guest ranch + outfitting.
Jackson Hole / Teton Wilderness. Thorofare and upper Yellowstone. 30+ years. Backcountry horseback elk hunts.
Cody, WY. North Fork Shoshone, near Yellowstone East Entrance. Guided elk and mule deer.
Sunlight Basin. Horseback wilderness hunts. Small group camps. Elk and mule deer. Cody area.
Star Valley / Wyoming Range. Units 90, 92, 94. Region G/H. Elk and mule deer. Verified live.

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Outdoor & Gun Stores

Sportsman's WarehouseCasper, WYFull hunting/outdoor retailer; firearms, optics, ammo, clothing.
Murdoch's Ranch & HomeCasper, WYFarm & ranch store; ammo, hunting clothing, supplies.
WalmartCasper, WYAmmo, basic hunting supplies, camping gear, groceries.
NAPA / Ace HardwareVarious small townsBasic hunting supplies and ammo in smaller communities.
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Game Processors

R&R Custom MeatsCasper, WYWild game processing; sausage, jerky, specialty cuts; (307) 234-3736
Prairie Rose ProcessingCasper, WYCustom wild game cuts and sausage; call ahead during season.
Glenrock LockerGlenrock, WYWild game processing; small-town shop; basic cuts and wrap.
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Gas Stations

Multiple stationsCasper, WY — I-25; 24-hr fuel; full services.
MaverikGlenrock, WY — I-25; convenient for eastern Casper-area hunts.
SinclairShoshoni, WY — US-20/26 junction; fuel for central WY.
MaverikThermopolis, WY — US-20; last fuel before heading into Owl Creeks.
ConocoLusk, WY — US-18/20; eastern WY fuel stop.
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Data from sleeperunits.com. Always verify with the official Wyoming Game & Fish proclamation.

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