Seven Sisters Peaks

Seven Sisters Peaks is a 2,747-metre (9,012-foot) 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, 10 km (6 mi) 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, 68.8 km (43 mi) to the south-southeast.[2]

Seven Sister Peaks
Seven Sisters Peaks (plus Orion Peak)
Highest point
PeakWeeskinisht Peak
Elevation2,747 m (9,012 ft)[1][2]
Prominence1,862 m (6,109 ft)[2]
Parent peakHowson Peak
Listing
Coordinates54°58′03″N 128°13′56″W[1]
Geography
Seven Sisters Peaks is located in British Columbia
Seven Sisters Peaks
Location of Seven Sisters Peaks in British Columbia
Seven Sisters Peaks is located in Canada
Seven Sisters Peaks
Seven Sisters Peaks (Canada)
CountryCanada
ProvinceBritish Columbia
DistrictRange 5 Coast Land District
Protected areaSeven Sisters Provincial Park
Range coordinates54°58′25″N 128°12′39″W[3]
Parent range
Topo mapNTS 103I16 Dorreen[3]
Climbing
First ascent1941 Neal Carter, K. Carter, G. Baker, J. Cade[4]

Climate

Based on the Köppen climate classification, Seven Sisters Peaks is located in a subarctic climate zone with cold, snowy winters, and mild summers.[5] Winter temperatures can drop below −20 °C with wind chill factors below −30 °C.

Etymology

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.[3]

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.[6]

Summits of Seven Sisters Peaks
Name Elevation Prominence First ascent Reference
Tlooki Peak 2,571 m (8,435 ft) 121 m (397 ft) 1958 Chris Mair [7]
Weeskinisht Peak 2,747 m (9,012 ft) 1,862 m (6,109 ft) 1941 Neal Carter [4]
Tagai Peak 2,660 m (8,730 ft) 130 m (430 ft) 1962 Shives & Brown [8]
Tingi Peak 2,534 m (8,314 ft) 49 m (161 ft) [9]
Kitshin Peak 2,580 m (8,460 ft) 170 m (560 ft) [10]
Kletoosho Peak 2,597 m (8,520 ft) 207 m (679 ft) [11]
Tuatoosho Peak 2,621 m (8,599 ft) 251 m (823 ft) [12]

See also
  • Seven Sisters Peaks seen with Orion Peak (furthermost right), and Skeena River
    Seven Sisters Peaks seen with Orion Peak (furthermost right), and Skeena River
  • Left to right: Tuatoosho, Kletoosho, Kitshin, Tingi, Tagai, Weeskinisht, Tlooki.
    Left to right: Tuatoosho, Kletoosho, Kitshin, Tingi, Tagai, Weeskinisht, Tlooki.
  • The peaks as seen from the Yellowhead Highway and Skeena River
    The peaks as seen from the Yellowhead Highway and Skeena River
  • Tingi Peak (left) and Tagai Peak (right)
    Tingi Peak (left) and Tagai Peak (right)
  • Tlooki Peak (left), Weeskinisht Peak, and Tagai Peak (right) seen from south.
    Tlooki Peak (left), Weeskinisht Peak, and Tagai Peak (right) seen from south.
  • Weeskinisht Peak (left), Orion Peak (right).
    Weeskinisht Peak (left), Orion Peak (right).

References
  1. "Topographic map of Weeskinisht Peak". opentopomap.org. Retrieved 2023-06-21.
  2. "Seven Sisters Peaks, British Columbia". Peakbagger.com. Retrieved 2019-12-08.
  3. "Seven Sisters Peaks". Geographical Names Data Base. Natural Resources Canada. Retrieved 2019-12-09.
  4. "Weeskinisht Peak (Seven Sisters)". Bivouac.com. Retrieved 2019-12-09.
  5. 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. ISSN 1027-5606.
  6. "Seven Sisters Peaks". BC Geographical Names. Retrieved 2021-06-05.
  7. "Tlooki Peak (Seven Sisters Peaks)". Bivouac.com. Retrieved 2019-12-09.
  8. "Tagai Peak (Seven Sisters Peaks)". Bivouac.com. Retrieved 2019-12-09.
  9. "Tingi Peak (Seven Sisters Peaks)". Bivouac.com. Retrieved 2019-12-09.
  10. "Kitshin Peak (Seven Sisters Peaks)". Bivouac.com. Retrieved 2019-12-09.
  11. "Kletoosho Peak (Seven Sisters Peaks)". Bivouac.com. Retrieved 2019-12-09.
  12. "Tuatoosho Peak (Seven Sisters Peaks)". Bivouac.com. Retrieved 2019-12-09.
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