found: Work cat.: 2002388112: Elizondo, D. Noticia de la expedición militar contra los rebeldes seris y pimas del Cerro Prieto, Sonora, 1767-1771, 1999:p. 3 (Sierra de Santa Rosa, popularly called Cerro Prieto)
found: GEOnet, June 29, 2005(under Mexico: Libre, Sierra; MTS; 28⁰30ʹ00ʺN; 110⁰57ʹ00ʺW; Sonora; Geonet lists also several mountains named Cierro Prieto in several states and 2 ppls of the same name in Sonora)
found: Empire of sand, c1999:p. 12 (Cerro Prieto, modern Sierra Libre; long, low mountain range stretching between Hermosillo and Guaymas)
found: GEOnet(summit; 28°30ʹ00ʺN 110°57ʹ00ʺW)
notfound: Web. geog.;Lippincott