| Seven Sister Peaks | |
| Highest: | Weeskinisht Peak |
| Elevation M: | 2747 |
| Prominence M: | 1862 |
| Prominence Ref: | [1] |
| Coordinates: | 54.9674°N -128.2322°W |
| Parent Peak: | Howson Peak |
| Region Type: | Province |
| Region: | British Columbia |
| District: | Range 5 Coast Land District |
| Part Type: | Protected area |
| Part: | Seven Sisters Provincial Park |
| Map: | Canada British Columbia#Canada |
| Range Coordinates: | 54.9736°N -128.2108°W |
| Range Coordinates Ref: | [2] |
| First Ascent: | 1941 Neal Carter, K. Carter, G. Baker, J. Cade[3] |
Seven Sisters Peaks is a 2747abbr=offNaNabbr=off multi-summit massif located in the Bulkley Ranges of the Interior Mountains in British Columbia, Canada. The massif is situated within Seven Sisters Provincial Park and Protected Area, 100NaN0 southeast of Cedarvale, south of Orion Peak, and surrounded by Seven Sisters Glacier. The highest peak of the seven is called Weeskinisht Peak. Precipitation runoff from the mountain and meltwater from the glacier drains into tributaries of the Skeena River. The nearest higher peak is Howson Peak, 68.80NaN0 to the south-southeast.[1]
Based on the Köppen climate classification, Seven Sisters Peaks is located in a subarctic climate zone with cold, snowy winters, and mild summers.[4] Winter temperatures can drop below −20 °C with wind chill factors below −30 °C.
Seven Sisters Mountain was the name adopted in 1948, but the mountain's toponym was changed and officially adopted October 4, 1951, by the Geographical Names Board of Canada.[2]
The individually named peaks of the massif from west to east are Tlooki Peak, Weeskinisht Peak, Tagai Peak, Tingi Peak, Kitshin Peak, Kletoosho Peak, and Tuatoosho Peak, which are the Tsimshian/Gitxsan words for One, "Top of the Mountain", Three, Four, Five, Six, and Seven, respectively. With the exception of Weeskinisht, the other names were submitted by Neal M. Carter of the Alpine Club of Canada and officially adopted in 1977.
| Name | Elevation | Prominence | First ascent | Reference | |
|---|---|---|---|---|---|
| Tlooki Peak | 2571m (8,435feet) | 121m (397feet) | 1958 Chris Mair | [5] | |
| Weeskinisht Peak | 2747m (9,012feet) | 1862m (6,109feet) | 1941 Neal Carter | ||
| Tagai Peak | 2660m (8,730feet) | 130m (430feet) | 1962 Shives & Brown | [6] | |
| Tingi Peak | 2534m (8,314feet) | 49m (161feet) | [7] | ||
| Kitshin Peak | 2580m (8,470feet) | 170m (560feet) | [8] | ||
| Kletoosho Peak | 2597m (8,520feet) | 207m (679feet) | [9] | ||
| Tuatoosho Peak | 2621m (8,599feet) | 251m (823feet) | [10] |