extends W to Billy Creek, in Limestone Hills, 16 mi. NW of Tahneta Pass, Talkeetna Mts.
Local descriptive name reported in 1931 by U.S. Geological Survey (USGS).
Horn Mountain, Sheep Mountain, Syncline Mountain,
Mountain Passes:Horsepasture Pass, Limestone Gap,
Mountain Ranges:Ridges:Streams:Alfred Creek, Ammonite Creek, Bench Creek, Billy Creek, Bitter Creek, Cadoceras Creek, Cardiceras Creek, Cardioceras Creek, Chitna Creek, Conglomerate Creek, Divide Creek, Flume Creek, Fortress Creek, Glass Creek, Greta Creek, Horsepasture Creek, Inoceramus Creek, Landslide Creek, Mazuma Creek, Mouse Creek, Papoose Creek, Roaring Creek, Sawmill Creek, Sawmill Creek, Sheep Creek, Sladen Creek, Squaw Creek, Whistler Creek, Wood Creek,
Valleys: