1. Berthoud, Larimer County, Colorado [cartographic material]. Yale Public content 1906. 2018-07-30T18:28:05Z. 2018-09-05T19:29:31Z. Sanborn Map Company, cartographer, publisher. Sanborn Map Company. CtY-BR. English. cartographic image. Public. Colorado, Berthoud, Berthoud (Colo.), and Berthoud.