Unit 143 Unit 143
Roberts Mountains and Kobeh Valley — big open public country for antelope and early-season deer
Central Nevada — Eureka County · Last reviewed 2026-07-12
Area
583
sq mi
Public land
90%
approx.
Elevation
6,000–10,133
feet
Motorized
moderate
access
Overview
Unit 143 is built around the Roberts Mountains and Kobeh Valley, running from the town of Eureka north toward the Cortez-Beowawe road in Eureka County. It is nearly all public BLM land, so access is rarely the problem — the challenge is covering big, empty high-desert country. Antelope are the strength, with recent draw hunters filling around seven of ten tags in the open valleys, while a modest mule deer herd on Roberts Creek Mountain hunts best early in the season before deer thin out.
Terrain
A tall, isolated desert range — Roberts Creek Mountain tops out above 10,000 feet — rising steeply off the broad sage bowl of Kobeh Valley. Antelope hold on the open valley flats and low benches; deer live in the timbered upper canyons, mahogany, and aspen near the crest.
Cover: Wyoming big sagebrush and low sage across Kobeh Valley, grading up through bitterbrush and pinyon-juniper to mountain mahogany, aspen stringers, and limber pine with spring-fed meadows near the summit ridge.
Landmarks: Roberts Mountains · Roberts Creek Mountain · Kobeh Valley · Three Bars · Cortez-Beowawe road · U.S. Highway 50 · State Route 278
Access
Overwhelmingly public — the Roberts Mountain BLM block is nearly unbroken (roughly 99,000 acres BLM with only a few hundred acres of other ownership), and private ground is limited to scattered ranches in Kobeh Valley. Reach the unit off U.S. Highway 50 west of Eureka and State Route 278 to the north; a network of BLM and county dirt roads pushes into Kobeh Valley and up the Roberts Creek drainages. Access does not meaningfully block hunting here.
Managers: BLM
Access points: U.S. Highway 50 (west of Eureka) · State Route 278 · Roberts Creek Road · Three Bars Road · Kobeh Valley roads
Species notes
Pronghorn
common qualityThe headline tag — recent antelope draw success runs near 72%. Bucks are distributed across the open sage of Kobeh Valley and the low benches ringing the Roberts Mountains, with plenty of public ground to work.
- →Cover Kobeh Valley with optics from high points at dawn and dusk, then stalk using the low rolls and draws.
- →In dry early hunts, key on springs and stock tanks — antelope concentrate on the scarce water.
- →Glass long and judge mass and prong before moving; the open country lets you pick a buck before committing.
- →A decoy during the rut works well in this wide-open valley terrain.
Mule Deer
limited opportunityA smaller deer herd than the Diamond Range to the east — about half of recent deer hunters filled. Roberts Creek Mountain holds deer and hunts well early before pressure and weather scatter them; success is a function of glassing time.
- →Hunt early — the unit is known for good early-season deer before they thin out; target the upper mahogany and aspen on Roberts Creek Mountain.
- →Glass the higher canyon heads and timber stringers from below at first light.
- →Get above the deer and work the crest country on foot; this is spot-and-stalk terrain, not a road hunt.
- →Watch water sources early season, then follow deer higher as it cools.
Pro tips
- →For deer, hunt the opener — Unit 143 is an early-season deer play, not a late-season one.
- →Antelope are the higher-odds tag; work Kobeh Valley's open flats hard with glass.
- →This is nearly all public ground — pick country by where the game is, not by access.
- →Scout water before an early hunt; springs and tanks pull both species.
- →Stage fuel and water in Eureka — there is nothing once you leave Highway 50.
Watch out for
- !No cell service and no facilities in the unit — carry a satellite communicator for a breakdown or injury.
- !Scattered private ranches sit in Kobeh Valley — verify boundaries around ranch headquarters and water even though the unit is mostly public.
- !The upper Roberts Creek Mountain roads can snow in early; carry chains and recovery gear.
- !Kobeh Valley dirt roads turn to gumbo after rain.
- !Seasonal fire restrictions are common — confirm with the BLM before you go.
Logistics
Eureka, at the south edge on U.S. Highway 50, is the base for fuel, food, and lodging; Carlin lies off the north end via SR 278. No developed campgrounds — camp dispersed on BLM near tree cover or water. Haul drinking water and carry extra fuel and recovery gear. Cell service is essentially nonexistent off the highways; bring a satellite messenger and leave an itinerary. Check road and fire conditions with the BLM Mount Lewis Field Office before heading in.
Nearest towns: Eureka, NV, Carlin, NV
Seasons & regulations
This page carries no season dates or regulations. Get current rules from the official Nevada sources:
Research sources: NDOW Mule Deer Hunt Info Sheet, Unit Group 141-145 · BLM Roberts Mountain Herd Management Area (99,321 acres BLM, geography) · Roberts Mountains / Roberts Creek Mountain — Wikipedia (elevation 10,133 ft)
FAQ
- How big is Unit 143 in Nevada?
- Unit 143 (Unit 143) covers about 583 square miles, ranging from roughly 6,000 to 10,133 feet in elevation. Area is computed from the unit boundary polygon.
- How much public land is in Unit 143?
- Approximately 90% of the unit is public land. Primary managers: BLM. Always verify ownership boundaries on the ground.
- What species does the catalog list for Unit 143?
- Pronghorn, Mule Deer. For seasons, tags, and regulations, use the official Nevada agency resources linked on this page — this page carries no regulatory information.
Put Unit 143 on your map.
Boundary lines, public/private ownership, topo, and offline maps for this unit — in Baseline Maps, free for 14 days.