Kaiparowits, East, Utah

The eastern Kaiparowits Plateau rises from desert canyon floors near Lake Powell at roughly 3,900 feet to flat mesa tops at approximately 7,600 feet. The signature landform on the eastern edge is Fifty Mile Mountain (also called 50 Mile Mountain), a long flat-topped mesa that runs the length of the unit. Terrain transitions from deep, steep-walled sandstone canyons and slickrock drainages at lower elevations to relatively flat, open plateau benches at higher elevations. Roads are scarce and the landscape is exceptionally remote, with no maintained services along the primary access routes.

Approximately 98% of the unit is publicly accessible (63% BLM, approximately 35% NPS/Grand Staircase-Escalante National Monument, 1% state trust lands), with only 2% private land. An estimated 43% of the unit falls within designated Wilderness Study Areas. There are no paved roads through the interior of the unit. Primary vehicle access routes are: (1) Smoky Mountain Road (BLM-330/NP-230), a 77-mile rocky dirt route connecting Escalante on SR-12 to Big Water on US-89, requiring high-clearance 4WD — the road becomes impassable with quicksand conditions after rain or snow; (2) Hole-in-the-Rock Road, a 62-mile dirt road (passable with high-clearance 2WD in dry conditions, final 5–7 miles require 4WD) running south from SR-12 near Escalante to Lake Powell, providing access to eastern unit drainages and the Fifty Mile Bench; (3) Fifty Mile Bench Road, a 4WD track branching west off Hole-in-the-Rock Road providing access to the plateau rim. Big Water on US-89 provides southern access. No maintained trailheads exist on the plateau proper; large interior sections are effectively foot or ATV access only.

Lower elevations and canyon bottoms support sparse desert shrub and blackbrush. Mid-elevation benches and the plateau itself are dominated by pinyon-juniper woodland. Ponderosa pine and Douglas fir appear at the highest plateau elevations. Riparian corridors with cottonwood and willow occur along perennial springs and canyon bottoms. Greater sage-grouse habitat is present on the plateau. The unit sits within the Late Cretaceous sedimentary rock landscape of Grand Staircase-Escalante National Monument.

Desert bighorn sheep are the primary big game focus of this specific boundary; the Kaiparowits Escalante bighorn sheep unit was formally split into East and West units, and the East unit has shown population increases and better trophy ram quality than the West in recent years. Mule deer occupy the unit from desert canyon floors through pinyon-juniper and up to plateau tops. Elk are present in the higher, forested portions of the plateau. Pronghorn historically occupied the plateau and reproducing populations have been reintroduced in recent decades. Mountain lions are resident predators throughout the canyon country. Greater sage-grouse maintain a population on the plateau. No CWMU designations were found within the Kaiparowits East boundary.

1. This boundary is the UDWR-designated Desert Bighorn Sheep hunt boundary (GoHunt code: dbhs-kaiparowits-east). Mule deer, elk, pronghorn, and mountain lion are also hunted in the geographic area under separate overlapping UDWR boundary designations. 2. Harvest data corrected from draft: HuntScore 2021 data shows 8 hunters / 7 harvested / 87.5% success — draft figure of 8 harvest and 100% success was not supported. Quota of 9 residents is from GoHunt/HuntScore 2024–2025 data. 3. Restricted weapon general deer hunt confirmed for Boulder/Kaiparowits per 2025 regulation changes. 4. Hole-in-the-Rock Road length verified at 62 miles (NPS source); Smoky Mountain Road length verified at 77 miles. 5. HuntScore also lists Rocky Mountain Bighorn Sheep for this unit; this is likely a data artifact as the UDWR designates this as a desert bighorn unit.