The mummified, skeletal corpse still had well-preserved climbing boots, crampons and clothing, as well as a driver's licence and passport belonging to William Stampfl. Stampfl is suspected to have died in an avalanche more than 20 years ago.
In a statement, police say they recovered his body on July 5 at an altitude of 5200 metres, well below Huascaran's 6768m summit.
Glacial mass in the region has been retreating for about the last 10 years, said Edson Ramirez, a park ranger and risk assessor for the Huascaran National Park.
"What was buried years ago is coming to the surface."
Peru has an estimated 68% of the world's tropical glaciers, which are among the most vulnerable ice packs in a warming planet. A November report by Peru's government shows the country has lost 56% of its tropical glaciers in the last six decades.
Many of those glaciers lie in Peru's Cordillera Blanca, where the Huascaran and other iconic mountains draw thousands of climbers a year.
