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Arizona Unit 37A — Logistics & Planning

Access, camping, weather, terrain, water, cell service, and nearest-town services.

Unit size
1,675.6 sq mi
Elevation
1,485–3,844 ft
Stock tanks
37
Total road miles
21

Elevation Profile

Min 1,485 ft Mean 2,072 ft Max 3,844 ft

Land Ownership Approximate

100% Private / Other

Season Weather

10-year monthly normals (Open-Meteo ERA5) at unit centroid (32.524°, -111.394°). Shaded rows indicate Arizona hunting seasons.

Month Avg High (°F) Avg Low (°F) Precip (in) Precip
Jan 67 40 1.0
Feb 71 42 1.2
Mar 78 47 0.9
Apr 86 53 0.3
May 95 62 0.2
Jun 104 71 0.2
Jul 105 77 1.3
AugSeason 103 77 1.8
SepSeason 99 71 0.9
OctSeason 89 59 0.5
NovSeason 77 47 0.5
Dec 66 39 1.1

Access & Roads

Road miles by type

Paved3.2 mi
Graded gravel10.1 mi
High-clearance7.5 mi
4WD / rough0 mi

Primary access points

  • AZ 86 @ unit boundary
    Paved highway — all vehicles — West Tucson-Ajo Highway
    Maps
  • AZ 86 @ unit boundary
    Paved highway — all vehicles — West Ajo Highway
    Maps
  • South Sandario Road @ unit boundary
    Paved secondary road — South Sandario Road
    Maps
  • South Sandario Road @ unit boundary
    Paved secondary road — South Sandario Road
    Maps
  • AZ 286 @ unit boundary
    Paved secondary road — South Sasabe Road
    Maps
  • South Sierrita Mountain Road @ unit boundary
    Paved tertiary / county road — South Sierrita Mountain Road
    Maps

🛻Named Roads & Trailer Ratings

RoadMilesRating
AZ 863Paved (all rigs)
Garcia Ranch Road2.2Graded gravel (2WD / small trailer)
West Donaldson Ranch Road1.6Graded gravel (2WD / small trailer)
San Pedro Road1.1Graded gravel (2WD / small trailer)
West Los Reales Road1Graded gravel (2WD / small trailer)

Water Availability

90
Streams / Rivers
9
Lakes / Reservoirs
37
Stock Tanks
0
Springs

Cell Coverage Approximate

Verizon26%
AT&T17%
T-Mobile9%

Nearest Towns & Services

Town Distance (mi) Pop. Fuel Groceries Lodging Gear
Red Rock 4.5 2,625 — — — — Maps
Avra Valley 7.8 5,569 ✅ ✅ — — Maps
Marana 11.9 62,302 ✅ — — — Maps
Picture Rocks 17 9,551 ✅ ✅ — — Maps
Eloy 18.5 19,391 ✅ ✅ — — Maps
Arizona City 22.7 9,868 — ✅ — — Maps
Pro: Waypoint bundle for Arizona Unit 37A
Access points, campgrounds, towns, and 37 stock-tank pins as GPX/KML.
Unlock Pro Waypoints →
Data generated 4/14/2026 · Validation: ✅ passed · ← Back to Unit 37A overview