Unit 391 is an Eagle County subunit covering the upper Piney River drainage and the Gore Range country north of Vail—Eagle and Summit County borderland with elevations from about 8,500 feet on the Piney River benches to 13,000 feet on the Gore Range crest. The Gore Range is one of Colorado's most vertically dramatic ranges—a saw-toothed crest of bedrock spires, bowls, and steep walls that earned its reputation for ass-kicking topography honestly. Vegetation is layered: lodgepole pine (heavily beetle-killed in places) on the lower slopes, dense subalpine spruce-fir on the mid-elevations, aspen pockets on the cooler aspects, and alpine tundra above 11,500 feet treeline with rocky talus, scree, and the occasional krummholz fringe. The Piney River drainage and Piney Lake are the recreational anchors—heavy summer foot traffic to the lake and trails climbing into the Eagles Nest Wilderness. Mountain goat hold the high crags (limited tag); elk and mule deer work the timbered benches and high meadows. White River National Forest dominates with the Eagles Nest Wilderness covering most of the high country (motorized prohibited—boots and horses only). Forest roads from Vail (off I-70) and from Wolcott climb to the wilderness boundary. Vail and Avon at I-70 provide full resort-priced services; Wolcott has gas and a small store. Cell service is good along I-70 and gone in the wilderness interior. The hunting is genuinely demanding—steep timber, heavy deadfall in beetle-kill country, and high-altitude meadow systems that require legs and lungs. The Gore Range pack-out is legendary for breaking hunters. Pressure on rifle is moderate; archery in September catches the rut and rewards hunters willing to camp deep.