Arizona Unit 40B Mule Deer Hunting Guide

Arizona Unit 40B sits among the desert-mountain complexes of the state's low-desert hunting country, offering nonresident and resident hunters alike a shot at mule deer in classic Sonoran-influenced terrain. With elevations ranging from just 80 feet up to 4,556 feet, this is a unit defined by dramatic vertical relief packed into a relatively compact footprint — from valley floor scrub flats to rocky desert mountain ranges. For hunters researching Arizona Unit 40B mule deer hunting opportunities, the unit's massive 2,202,920-acre size and 92% public land ownership make it one of the more accessible desert deer units in the state's draw system.

This is a unit that rewards hunters willing to put in serious legwork across big country. There's no wilderness designation here (0%), which means no special access restrictions or guide requirements for nonresidents — a meaningful advantage for DIY hunters looking to scout and hunt independently. But big acreage and high public access come with a tradeoff: this is rugged, spread-out desert terrain where success depends heavily on scouting, physical conditioning, and knowing how to read low-desert mule deer behavior.

HuntPilot Analysis: Is Unit 40B Worth Applying For?

Unit 40B is a legitimate consideration for hunters prioritizing access and public land over guaranteed trophy quality. The numbers tell a mixed but informative story. Harvest success has fluctuated significantly over the past four seasons — from a low of 19% in 2022 to a high of 48% in 2024 — which signals that conditions (weather, deer movement, hunter effort) vary considerably from year to year in this unit. The 2023 season saw 48 hunters take to the field with 18 successful, a 38% success rate, while 2025 dropped to just 9 harvested out of 32 hunters (28%). This kind of year-to-year swing is common in desert mule deer units where forage conditions and rainfall patterns directly affect deer distribution and condition.

The trophy picture for Unit 40B is honest but modest: the counties overlapping this unit carry a limited history of trophy-class record entries. That doesn't mean mature bucks aren't present, but hunters should not view 40B as a unit built around producing record-book animals. This is an opportunity-and-experience unit rather than a trophy-hunting destination. Hunters chasing a genuine trophy mule deer buck should look elsewhere in Arizona's draw system; hunters who want a fair shot at a mature desert buck on a huge, mostly-public landscape with a reasonable application fee will find 40B a sound option.

The 92% public land figure is a major point in this unit's favor. With over 2.2 million acres and the overwhelming majority in public ownership, DIY hunters have enormous room to roam, glass, and adjust their game plan mid-hunt without running into private land conflicts. Combined with the lack of wilderness restrictions, this unit is genuinely DIY-friendly — a rarity in some of Arizona's more fragmented deer units.

Harvest Success Rates

Recent harvest data for Unit 40B shows real variability, and hunters should plan around that variability rather than assuming any single year's numbers will repeat:

• 2025: 32 hunters, 9 harvested — 28% success
• 2024: 44 hunters, 21 harvested — 48% success
• 2023: 48 hunters, 18 harvested — 38% success
• 2022: 47 hunters, 9 harvested — 19% success

Averaging these four seasons puts success in the low-to-mid 30% range, which is respectable for a low-desert mule deer unit of this size. The 2024 season stands out as the strongest of the four, nearly doubling the success rate of 2022. Hunters should treat this swing as a reminder that desert mule deer hunting is heavily influenced by seasonal rainfall, forage quality, and how deer disperse across available water sources in a given year. Scouting close to the season and staying mobile within the unit's large public-land footprint will do more for a hunter's odds than any single data point from a prior year.

Trophy Quality

Trophy data for the counties overlapping Unit 40B points to a limited history of record-book mule deer entries. This places 40B outside the tier of Arizona units known for consistently producing trophy-class bucks. Hunters should approach this unit with realistic expectations: mature desert mule deer bucks are present and huntable, but this is not a unit with a strong or well-documented trophy pedigree. Hunters whose primary goal is a wall-hanger buck with record-book potential should research units with a deeper trophy history; hunters focused on a solid hunting experience, a fair crack at a mature buck, and excellent public access will find 40B a reasonable fit.

Access & Terrain

Unit 40B's terrain profile is defined by extreme elevation range packed into a single unit — from 80 feet at the lowest points to 4,556 feet at the highest. This vertical spread means hunters will encounter everything from flat desert valley floors and washes to rugged, rocky desert mountain terrain within the same unit boundary. This kind of topographic diversity is typical of Arizona's low-desert units, where mule deer often use the mid-elevation benches and rocky foothill terrain for bedding and move into lower flats and washes to feed, particularly around available water.

With 92% public land across more than 2.2 million acres, access is a genuine strength of this unit. The overwhelming public ownership means hunters have wide latitude to explore, relocate, and adjust hunting pressure without needing to negotiate private land access. There is no wilderness acreage in Unit 40B (0%), so there are no special nonresident guide requirements tied to wilderness designation, and mechanized access via existing roads and routes is generally more available than in wilderness-heavy units elsewhere in the West.

That said, big desert country demands real preparation. Hunters should expect long-distance glassing, significant walking or hiking to reach productive terrain, and highly variable temperatures given the elevation swing. Hunters serious about scouting this unit before the season should use HuntPilot's public land and terrain mapping tools to identify likely water sources, elevation transitions, and access routes across the unit's large footprint — this kind of pre-season map work is essential in a unit this size.

How to Apply

Arizona's draw system requires hunters to hold a qualifying hunting license before applying — this is separate from the application fee itself, and it's a detail hunters frequently overlook when budgeting for an Arizona deer application.

For 2026 Arizona Unit 40B deer applications:

For current draw odds specific to Unit 40B, visit HuntPilot's Arizona state page at /states/az, where odds by point level and residency are tracked and updated as new draw data becomes available.

Application dates and fees change every draw cycle. For the current deadlines, fees, and draw odds, see HuntPilot's Arizona page at /states/az.

Frequently Asked Questions

What is the terrain like in Arizona Unit 40B?

Unit 40B features dramatic elevation range from 80 feet up to 4,556 feet, encompassing low desert valley floors, washes, and rugged desert mountain terrain within a single massive unit spanning over 2.2 million acres. Hunters should expect a mix of flat, open desert country and steeper rocky foothills, with no wilderness-designated land restricting mechanized access.

What is harvest success like in Unit 40B?

Harvest success has varied significantly over the past four seasons, ranging from 19% in 2022 to 48% in 2024. The 2023 season saw 38% success and 2025 dropped to 28%. Hunters should expect meaningful year-to-year variability driven by seasonal conditions rather than counting on any single year's rate repeating.

How big are the mule deer in Unit 40B?

Trophy record data for the counties overlapping Unit 40B shows a limited history of record-book entries, meaning this unit is not known as a consistent producer of trophy-class bucks. Mature desert mule deer are present and can be harvested here, but hunters seeking a documented trophy pedigree should research units with stronger historical trophy production.

Is Arizona Unit 40B worth applying for?

Unit 40B is worth considering for hunters who prioritize public land access and DIY opportunity over trophy potential. With 92% public land, zero wilderness restrictions, and a huge overall footprint, it's an accessible unit for scouting and hunting independently. Hunters chasing a documented trophy buck may want to look at units with deeper trophy history, but hunters wanting a fair, well-rounded desert mule deer hunt with solid public access will find real value here.

What should hunters know about applying for Unit 40B mule deer tags?

Check HuntPilot's Arizona state page for current draw odds specific to this unit before applying.