Parque Nacional El Imposible (El Salvador)

found: Work cat.: Parque Nacional El Imposible y su vida silvestre, 2003:t.p. (Parque Nacional El Imposible, El Imposible National Park [part of English title] p. 27 (located in the Departamento de Ahuachapan, just north of the towns of San Benito and San Francisco Bent̕ez)

found: Central America's National Parks WWW site, March 29, 2004:introductory screen, etc. (El Imposible National Park; located in the southwestern part of El Salvador, in the province of Ahuachapǹ, between the municipalities of San Francisco Menéndez and Tacuba, which are next to the Guatemalan border.)

found: Salvanatura WWW site:introductory pages, etc. (Parque Nacional El Imposible, El Imposible; Salvanatura is a non-profit organization that operates the park)