Like other mountains in Banff National Park, Mount Peechee is composed of sedimentary rock laid down during the Precambrian to Jurassic periods.[4] Formed in shallow seas, this sedimentary rock was pushed east and over the top of younger rock during the Laramide orogeny.[5]
Climate
Based on the Köppen climate classification, Mount Peechee is located in a subarctic climate zone with cold, snowy winters, and mild summers.[6] Temperatures can drop below −20 °C with wind chill factors below −30 °C. Precipitation runoff from Mount Peechee drains into tributaries of the Bow River, which is a tributary of the Saskatchewan River.