Cassiar Mountains

The Cassiar Mountains are the most northerly group of the Northern Interior Mountains in the Canadian province of British Columbia and also extend slightly into the southernmost Yukon Territory. They lie north and west of the Omineca Mountains, west of the northernmost Rockies and the Rocky Mountain Trench, north of the Hazelton Mountains and east of the Boundary Ranges. They form a section of the Continental Divide, that, in this region, separates water drainage between the Arctic and Pacific Oceans. Physiographically, they are a section of the larger Yukon-Tanana Uplands province, which in turn are part of the larger Intermontane Plateaus physiographic division.

In the western Cassiar Mountains lie the remnants of a prehistoric shield volcano called the Maitland Volcano which formed between 5 and 4 million years ago during the Pliocene period.

The highest mountain in the Cassiar Mountains is Thudaka Peak, at 2,748 m (9,016 ft).^[1]

Sub-ranges and major summits

• Dease Plateau
  • Horseranch Range
• Kechika Ranges
  • Mount Skook Davidson
• Sifton Ranges
  • Cormier Range
  • Ruby Range
• Stikine Ranges
  • Beady Range
  • Nisutlin Plateau
  • Skree Range
  • Three Sisters Range
  • Thudaka Range
    • Thudaka Peak
  • Tuya Range
    • Ash Mountain

References

• "Cassiar Mountains". BC Geographical Names. 
• Holland, S. (1976). Landforms of British Columbia. Province of British Columbia. 

Interior Mountains
Ranges	Atna Atsutla Axelgold Babine Bait Beady Bornite Bulkley Butler Cariboo Heart Cassiar Chikamin Connelly Cormier Driftwood Eaglenest Espee Finlay Fishing Germansen Hazelton Heart Hogem Horseranch Howson Ingenika Kasalka Kechika Kispiox Klappan Lay Level Mountain McConnell Metsantan Mitchell Morice Nass O.K. Omineca Osilinka Oweegee Pattullo Rocher Déboulé Ruby Russel Samuel Black Sibola Sicintine Sifton Sikanni Sitlika Skeena Skree Slamgeesh Spectrum Stikine Strata Swannell Tahtsa Takla Tatlatui Telkwa Tenakihi Three Sisters Thudaka Tochquonyalla Tucha Tuya Vital Whitesail Wolverine Wrede
Mountains	Ash Cache Camp Caribou Cartoona Castle Rock Chikoida Cronin Dark Edziza Eve Exile Gabrielse Grizzly Gunanoot Howson Ice Icefall Isspah Kana Kawdy Keda Klastline Level Maitland Mathews Meehaz Meszah Moraine Nahlin Nahta Nanook Nuthinaw Outcast Perseus Pharaoh Pillow Ridge Sezill Shedin Shelagyote Sidas Sleet Source South Spatsizi Spectrum Sphinx Storm Tadeda Tadekho Tennena Thomlinson Thudaka Toozaza Triangle Triplex Tseax Tsekone Tutsingale Tuya Twin Volcano West Wetalth Williams Yeda
Parks	Atlin Babine Lake Marine Babine Mountains Babine River Corridor Bear Glacier Boya Lake Bulkley Junction Call Lake Chase Denetiah Driftwood Canyon Dune Za Keyih Ed Bird-Estella Finlay-Russel Iskut River Hot Springs Kinaskan Lake Little Andrews Bay Marine Meziadin Lake Mount Blanchet Mount Edziza Nation Lakes Netalzul Meadows Nilkitkwa Lake Ningunsaw Nisga'a Memorial Lava Bed Rainbow Alley Ross Lake Rubyrock Lake Seeley Lake Seven Sisters Spatsizi Headwaters Spatsizi Plateau Sustut Swan Lake/Kispiox River Tatlatui Todagin South Slope Tuya Mountains Tweedsmuir North Tweedsmuir South Tyhee Lake Wistaria
See also: Geography of Canada portal

Subfields of physical geography
Biogeography Climatology / Paleoclimatology Coastal geography Edaphology Geomorphology Glaciology Hydrology / Hydrography Landscape ecology Limnology Meteorology Oceanography Palaeogeography Pedology/Soil science Quaternary science