found: Work cat.: Vega-López, A.A. La herpetofauna de los volcanes Popocatépetl e Iztaccíhuatl, 1992:abstr. ("... and finally was compared the local herpetofauna with the other five volcanoes in the Neovolcanic Transversal Belt.")
found: Web. geog.(Popocatépetl. Volcano, Puebla state, SE cen. Mexico, 30 m. W of Puebla; 17,887 ft.; contains crater over 1/2 m. in circumference and 250 ft. deep)
found: Lippincott(Popocatepetl [Aztec, =smoking mountain], dormant volcano (17,887 ft.), central Mexico, on Puebla-Mexico state border, 45 mi. SE of Mexico city, S of Ixtacihuatl; 19⁰01ʹN 98⁰37ʹW. Second in height only to Pico de Orizaba among Mex. peaks)
found: GEOnet, Nov. 20, 1998(Popocatépetl, Volcán, vln., 19⁰02ʹN 98⁰38ʹW)
found: GEOnet(summit; 19°02ʹ00ʺN 098°38ʹ00ʺW)