Like other mountains in Waterton Lakes National Park, Forum Peak is composed of sedimentary rock laid down during the Precambrian to Jurassic periods. Formed in shallow seas, this sedimentary rock was pushed east and over the top of younger Cretaceous period rock during the Laramide orogeny.[2]
Climate
Based on the Köppen climate classification, Forum Peak is located in a subarctic climate with cold, snowy winters, and mild summers.[3] Temperatures can drop below −20 C with wind chill factors below −30 C.
^Gadd, Ben (2008). "Geology of the Rocky Mountains and Columbias". {{cite journal}}: Cite journal requires |journal= (help)
^Peel, M. C.; Finlayson, B. L. & McMahon, T. A. (2007). "Updated world map of the Köppen−Geiger climate classification". Hydrol. Earth Syst. Sci. 11: 1633–1644. ISSN1027-5606.