1. Bathymetric surface and storage capacity of Terrace Reservoir, Conejos County, Colorado, July-August 1994 Yale Public content 1996. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey. English. Public. Colorado, Conejos County, Terrace Reservoir (Colo.), and Alamosa River (Colo.).