HD 426 covers the country around Lame Deer—the heart of the Northern Cheyenne Indian Reservation and the surrounding ponderosa-pine breaks country in southeast Montana. Elevations run from about 3,000 feet on the lower Tongue and Rosebud creek bottoms up to 4,500 feet on the higher pine-covered ridges. The terrain is the classic SE MT pine-breaks mosaic: long ponderosa-pine ridges, sandstone outcrops, juniper draws on the cooler aspects, big sage-and-grass parks, and cottonwood-and-willow creek bottoms. The Northern Cheyenne Reservation occupies the bulk of the polygon and the tribe manages its own wildlife program. Mule deer, whitetail, elk, pronghorn, and turkeys all use the country. Critical caveat: most of the unit is Northern Cheyenne tribal land, and non-tribal hunters require Northern Cheyenne tribal permits—and those are limited and managed through the tribe's wildlife office. Read the FWP HD 426 maps and the reservation boundary very carefully; do not set foot on tribal land without the right permit. The huntable ground for a non-tribal hunter is whatever falls outside the reservation boundary—a small fringe of BLM, DNRC state, and private ranches. Block Management may apply on private. US-212 east-west is the principal paved access; secondary roads handle the rest. Lame Deer is the tribal headquarters with gas, the Cheyenne Depot trading post, the tribal college; Ashland is east, Busby west. Cell service is patchy. Coordinate with the tribal wildlife office well in advance if you want a tribal permit; for non-tribal access without a permit, this is a tough unit to hunt practically.