what type of plate boundary is colca canyon
guided tour to colca valley since $570 usd per person Discover The Upper And Low Zone Of The Colca Canyon In 3 Days - 2 Night Colca River Basin is situated in the extreme north east of the Arequipa region, the highest point of the basin is the Ampato snow- mountain at 6300 meters. The Colca Valley has about 180km. long and occupies only part of the Colca River basin, one comprising the districts of Callalli and Huambo. The Colca Valley and Colca canyon is part of the South American tectonic plate, eroded by thousands of years by the longest river in the Peruvian coast. The area is surrounded by volcanoes as Sabancaya and the Coropuna and the Ampato.