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Arizona Bighorn Sheep

Unit 40BWG (Kofa West – White Ghost)

Arizona Hunting Guide — Bighorn Sheep

Unit 40B-WG (White Ghost) is a specialized desert bighorn hunt covering the west side of the Kofa National Wildlife Refuge in Yuma County. Terrain is classic Sonoran Desert sheep country — stacked rimrock, slot canyons, and cliff bands rising from creosote-bursage flats. The White Ghost hunt is one of Arizona's most prized once-in-a-lifetime bighorn draws, with very few tags and exceptional ram quality.

Bighorn Sheep Hunting in Unit 40BWG

Unit 40B-WG (White Ghost) is a specialized desert bighorn hunt covering the west side of the Kofa National Wildlife Refuge in Yuma County. Terrain is classic Sonoran Desert sheep country — stacked rimrock, slot canyons, and cliff bands rising from creosote-bursage flats. The White Ghost hunt is one of Arizona's most prized once-in-a-lifetime bighorn draws, with very few tags and exceptional ram quality.

Where to Find Bighorn Sheep in Unit 40B-WG

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How to Hunt Bighorn Sheep in Unit 40B-WG

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Bighorn Sheep Success Rates

Rifle75%
Tag numbers are tiny (~9 across three recent years against ~896 applicants). Success rates on Arizona desert bighorn hunts consistently run 85–95% given the effort hunters put into these once-in-a-lifetime tags. Ram trophy quality in the Kofas is regularly 160+ B&C with occasional giants.

Bighorn Sheep Draw Odds

SeasonTagsApplicantsDraw %Pts Req
Rifle— General Rifle32270.9% 0
Rifle— Late Rifle Nov34080.5% 0
Rifle— Late Rifle Dec48900.4% 0

Data from 2023 draw results. Resident odds shown.

Open in Draw Odds Engine
40B-WG is a top-tier Arizona bighorn draw. With ~9 tags over three years against ~896 applicants, odds per applicant run roughly 1% under AZ's weighted system. 20% of tags go to max-point applicants first; the remaining 80% route through a random weighted draw. Expect to need 15–25+ bonus points for realistic competitiveness. Harvesting an AZ bighorn ends eligibility to apply for bighorn in the state again.

Unit Logistics & Expectations

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Frequently Asked Questions

What's the difference between 40B-WG and 40B-WT?
Both are west-side Kofa hunts with separate tag allocations. 40B-WG (White Ghost) and 40B-WT (White Tank) divide the west-side herd into adjacent hunt areas. Tag availability, timing, and specific ram groups differ — review AZGFD's current regulations for the exact boundaries.
How do I cache water for a Kofa backpack hunt?
Hike in pre-season with water containers and cache at safe, shaded locations. Mark GPS coordinates carefully. Check caches weekly during scouting — we've had caches compromised by wildlife and weather.
Do I need a guide for 40B-WG?
Not legally, but practically yes. The terrain, water logistics, and ram-finding expertise that experienced Kofa guides bring make the difference between a successful once-in-a-lifetime hunt and a frustrating one.

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Sources & Verification

Every fact on this page is tied to a primary source below. Last fact-checked 2026-04-17.

  1. AZGFD Desert Bighorn Sheep Management — Arizona Game and Fish Department · supports: Desert bighorn hunt structure, Kofa herd management, Once-in-a-lifetime tag · accessed 2026-04-17
  2. 2025-26 Arizona Hunting Regulations — Arizona Game and Fish Department · supports: Bighorn season structure, Tag allocation, Hunt boundaries · accessed 2026-04-17
  3. Kofa National Wildlife Refuge — U.S. Fish and Wildlife Service · supports: Refuge regulations, Wilderness boundaries, Access roads · accessed 2026-04-17
  4. AZGFD Draw Portal — Hunt Drawing Information — Arizona Game and Fish Department · supports: Weighted bonus point draw, 40B-WG historical odds · accessed 2026-04-17