Long Knife Peak (9,789 feet (2,984 m)) is located in the Clark Range, Glacier National Park in the U.S. state of Montana. Though much of the mountain slopes extend into the Canadian Province of British Columbia, the main summit is in the U.S. Long Knife Peak rises more than a vertical 1 mile (1.6 km) above Upper Kintla Lake. It is also the most northerly peak and land area in the contiguous United States above 9,000 feet (2,743 m). Long Knife Peak is on an east west ridgeline identified as the "Boundary Mountains" on the USGS 7.5 minute topo quad and this extended ridge, with peak 8864, also contains the most northerly named (numbered) peak and land area in the contiguous United States above 8,000 feet (2,438 m).
Climate
Based on the Köppen climate classification, Long Knife Peak is located in an alpine subarctic climate zone characterized by long, usually very cold winters, and short, cool to mild summers. Temperatures can drop below −10 °F with wind chill factors below −30 °F.
^"PRISM Climate Group, Oregon State University". PRISM Climate Group, Oregon State University. Retrieved October 16, 2023. To find the table data on the PRISM website, start by clicking Coordinates (under Location); copy Latitude and Longitude figures from top of table; click Zoom to location; click Precipitation, Minimum temp, Mean temp, Maximum temp; click 30-year normals, 1991-2020; click 800m; click Retrieve Time Series button.