1. Walsenburg, Huerfano County, Colorado [insurance map] [cartographic material] Yale Public content 1912. 2016-12-14T16:34:32Z. 2016-12-19T18:11:36Z. Sanborn Map Company. Sanborn Map Co. English. cartographic image. Public. Colorado, Walsenburg, Walsenburg (Colo.), and Walsenburg.