CASTLEGATE, a town in Carbon county, Utah ; elevation 6,12of t. above sea-level; population (1930) 923. The name "Castlegate" was taken from that of the peculiar gate-like passage in the canyon of Price river 2m. above the town. Here project ing pinnacles of grey sandstone, 450 to 5oof t. high, close in on the valley, leaving only a narrow passage resembling a gateway in the walls of a ruined castle. The sandstone pillar on the east side of the canyon appears almost ready to fall on the passing trains of the Denver and Rio Grande Western railway, which uses the pass.