margin of Antelope Flat. Camp Davis 0-5,500 Conglomerate, red Southernmost tip of Formation and gray, with Jackson Hole. white tuff, diatomite, and red and white claystone. Miocene Colter 0-7,000 Volcanic Pilgrim and Ditch Formation conglomerate, tuff, Creeks, and north and sandstone, end of Teton Range. white to green-brown, with locally-derived basalt and andesite rock fragments. Oligocene Wiggins 0-3,000 Volcanic Eastern margin of Formation conglomerate, gray Jackson Hole. to brown, with white tuff layers. Eocene Unnamed upper 0-1,000 Tuff, conglomerate, Eastern margin of and middle sandstone, and Jackson Hole. Eocene claystone, green, sequence underlain by variegated claystone and quartzite pebble conglomerate. Wind River 2,000-3,000 Claystone and Eastern margin of and Indian sandstone, Jackson Hole. Meadows variegated, and Formations locally-derived conglomerate; persistent coal and gray shale zone in middle. Paleocene Unnamed 1,000-2,000 Sandstone and Eastern margin of greenish-gray claystone, Jackson Hole. and brown greenish-gray and sandstone and brown, claystone intertonguing at sequence base with quartzite pebble conglomerate. Pinyon 500-5,000 Conglomerate, Eastern part of Conglomerate brown, chiefly of Jackson Hole, Mt. rounded quartzite; Leidy and Pinyon coal and claystone Peak Highlands, and locally at base. north end of Teton Range.