Zone 63 covers the country northwest of Idaho Falls in the Centennial Mountains and the Beaverhead Mountains foothills, hugging the Montana border. Elevations span from about 6,000 feet in the Centennial Valley to over 9,800 feet on the higher peaks. The country is sage and aspen at lower elevations, transitioning into doug fir, lodgepole, and aspen at mid-slopes, with subalpine fir and Engelmann spruce on the upper benches. The Centennial Mountains form the divide and the state line with Montana. Caribou-Targhee NF, BLM, and state ground cover the bulk of public land, with private ranchland in the valleys. Highway 20, Highway 87, and various forest roads provide access. Island Park is the closest meaningful service town; Dubois has limited supplies; Idaho Falls is the metro hub. Cell service is in towns. Elk and mule deer both inhabit. Elk numbers are solid because of the cross-border herd dynamics; mule deer use the aspen-mahogany-sage transitions. The country is moderate-difficulty with reasonable road access. Wind rips across the open country, and snow can come early at elevation. Late September can already see real winter weather.