Unit 40B · Organ Pipe Cactus / Ajo
Sonoran DesertMajority public land
Unit 40BArizona · 0 units
About this unit
Sonoran Desert anchored by Organ Pipe Cactus National Monument and BLM lands around Ajo. Granite ranges, organ-pipe stands, and arroyos draining to the Gulf of California.
- Organ Pipe Cactus National Monument
- Ajo Range
Public lands inside this unit
15 found
Organ Pipe Cactus National Monument
518 sq miParkNational MonumentBetty's Kitchen Watchable Wildlife Viewing Area and National Recreation Trail
ParkNat'l Recreation AreaBill Williams River Locality
ParkNat'l Recreation AreaImperial Dam Long Term Visitor Area
ParkNat'l Recreation AreaImperial Reservoir Area: Mittry Lake Wildlife Area
ParkNat'l Recreation AreaKofa National Wildlife Refuge
ParkNat'l Recreation AreaLittle Picacho Wilderness
ParkNat'l Recreation AreaMittry Lake Wildlife Area
ParkNat'l Recreation AreaMuggins Mountain Wilderness
ParkNat'l Recreation AreaOrgan Pipe Cactus National Monument
ParkNat'l Recreation AreaPilot Knob Long Term Visitor Area
ParkNat'l Recreation AreaSenator Wash Boat Ramp Day Use Area
ParkNat'l Recreation AreaCabeza Prieta National Wildlife Refuge
1,341 sq miParkwildlife refugeColorado River State Historic Park
ParkState ParkYuma Territorial Prison State Historic Park
ParkState Park
Trails near Unit 40B
12 found
Washington to Arizona Backcounty Discovery Route Ride
Difficulty: Moderate4716.2 miTrailContinental Divide Trail
Difficulty: Difficult3001.6 miTrailOatman Massacre Site OHV Trail
Difficulty: Easy25.1 miTrailAjo Mountain Drive
Difficulty: Expert20.4 miTrailDessert Oasis OHV Route
Difficulty: Expert19.4 miTrailIndian Pass Road OHV Trail
Difficulty: Easy17.0 miTrailLaguna Mountain Ridge Trail
Difficulty: Expert15.4 miTrailParadise Valley Loop
Difficulty: Expert13.6 miTrailRoute of Butterfield Stage OHV Trail
Difficulty: Easy12.2 miTrailFortuna Mine OHV Trail
Difficulty: Moderate12.0 miTrailSenators Wash
Difficulty: Expert12.0 miTrailLaguna Mountains-Yuma Trail
Difficulty: Difficult11.4 miTrail
Campgrounds near Unit 40B
12 found
T.K. Jones Campground at Squaw Lake
Pricing varies — check with the operatorCampgroundHolt's Shell RV Park
Pricing varies — check with the operatorCampgroundHidden Cove RV Park
Pricing varies — check with the operatorCampgroundDarby Wells Rd BLM Dispersed
Pricing varies — check with the operatorCampgroundSunset Palm 55+ RV Park
Pricing varies — check with the operatorCampgroundEncore Suni Sands
Pricing varies — check with the operatorCampgroundDateland RV Park
Pricing varies — check with the operatorCampgroundShady Acres Mobile Home & RV Park
Pricing varies — check with the operatorCampgroundEl Prado Estates Mobile Home & RV Park
Pricing varies — check with the operatorCampgroundEncore Desert Paradise
Pricing varies — check with the operatorCampgroundFortuna Pond
Pricing varies — check with the operatorCampgroundSonoran Skies Campground
Pricing varies — check with the operatorCampground
On the books in Arizona
Species inventory is state-level — which units actually hold or permit each species varies. Verify unit-specific rules with the state agency linked above.
Official agency resources
Arizona Game and Fish Department
Authoritative source
Outdoors does not publish hunting regulations directly. For current season dates, bag limits, legal weapons, draw deadlines, and license costs in unit 40B, go straight to the issuing agency.
Read the Arizona agency pageBoundary verified by Outdoors against the agency source on 10/25/2026.