| The Sisters | |
| Elevation Ft: | 3838 |
| Elevation Ref: | [1] |
| Prominence Ft: | 459 |
| Isolation Mi: | 1.67 |
| Range: | Alexander Archipelago[2] |
| Country: | United States |
| State: | Alaska |
| Location: | Sitka city-borough |
| Part Type: | Protected area |
| Part: | Tongass National Forest |
| Map: | USA Alaska |
| Label Position: | left |
| Mapframe: | yes |
| Mapframe-Zoom: | 8 |
| Mapframe-Caption: | Interactive map of The Sisters |
| Coordinates: | 57.1005°N -135.2199°W |
| Coordinates Ref: | [3] |
| Topo: | USGS Sitka A-4 |
The Sisters are mountain summits in Alaska, United States.
The Sisters are located on the west coast of Baranof Island, approximately 5miles northeast of Sitka.[4] The highest peak reaches an elevation of 3838feet. This mountain group is part of the Alexander Archipelago and is set on land managed by Tongass National Forest.[2] Precipitation runoff from the mountain drains to the Indian River and Sitka Sound. Topographic relief is significant as the north slope rises over 3400abbr=offNaNabbr=off above an unnamed creek in 1miles. The landform's local name was published in 1916 by U.S. Coast and Geodetic Survey,[4] and the toponym has been officially adopted by the U.S. Board on Geographic Names.[3]
Based on the Köppen climate classification, The Sisters is located in a subpolar oceanic climate zone with long, cold, snowy winters, and cool summers.[5] Weather systems coming off the Gulf of Alaska are forced upwards by the mountains (orographic lift), causing heavy precipitation in the form of rainfall and snowfall. Winter temperatures can drop below 10 °F with wind chill factors below 0 °F.