ID Bighorn Sheep Unit 28

ID 28 — Tactical Analysis. Terrain & Access ID 28 is a sprawling high-elevation unit spanning nearly 838,000 acres across Lemhi County. The landscape rises dramatically from 3,017 feet to nearly 10,000 feet, offering diverse terrain from river canyons and sagebrush foothills to alpine ridges and rocky peaks. Nearly all land (98.2%) is public—primarily national forest and public domain—making this a wide-open unit with minimal private-land complications. Wilderness comprises 14% of the unit, leaving the majority accessible to self-reliant hunters without guide requirements. Trophy Potential The Lemhi County drainages overlapping ID 28 hold a strong historical record..