All the following are in Spanish unless otherwise stated.
Books and maps.
"ElCordal de Ponga", by Juan Delgado, published by Ediciones SZ in1988; probably thebest book on the Ponga mountain range (but not the whole naturalpark), a big hardback with plenty of old black and white photographs,and a detailed 1:25,000 map (again of the mountain range but not thewhole natural park).
"Ponga- un paraje legendario - guía de rutas", by Arancha LosaGarcía and José Carlos Mori Montes, publishedby Trabe in 2004; brief descriptions of the area, and a selection ofwalking routes.
"Itinerarios por Los Beyos", by Gerardo López González, published by Trea in1997; descriptions and walking routes for the Beyos villages.
"Guía de los bosques de Asturias", by Tomás Emilio Díaz and AntonioVázquez, published by Trea in 2004; detailed information about theforests of Asturias, including Peloña, with walking routes.
"Asturias- Paraíso Natural - parques, reserves naturales, paisajesprotegidos", published by the government of Asturias in 2005; briefdescriptions of all the parks in Asturias, with acceptable Englishtranslations.
"Guía de Ponga -tradición y paisaje", by Ángel Mato Díaz and José Arias Canga,published by Ponga council; short overview of the area, with somewalking routes.
"Parque Natural de Ponga - tradición y paisaje", published by Cajasturand Ponga council; short overview of the area, with useful phonenumbers.
"Mapade Ponga y su entorno", by Faustino Martín Hidalgo and ManuelCarrero Pinedo, published by Vetusta mountaingroup (Oviedo) in 1995; probably the best map of the natural park andsurroundings, concentrating on mountains, ridges, and passes(1:50,000).
Spanish military maps, published by "Servicio Geográfico del Ejército",1:25,000.
www.ponga.es- website of Ponga council.
www.abamia.net/psanta420.pdf- good document by Peña Santa mountain group about Peloña forest.
www.asturias.es- website of Asturias tourist board (infoasturias) with a sectionabout Ponga Natural Park (in English).
www.aemet.es- weather forecast for the mountains, from the Ministry of theEnvironment.
www.accuweather.com- world weather forecasts from an American site (in English)(search for San Juan de Beleño).
www.asturnatura.com- Detailed Spanish website about the flora and fauna of Asturias.
www.iberianature.com- English-language website about Spanish nature.