Rocky mountain trench

  • R. B. Campbell
  • H. Gabrielse
Reference work entry
The Rocky Mountain Trench is widely known as a chain of interconnected linear valleys along the western side of the Rocky Mountains from Montana to near the British Columbia—Yukon boundary, a distance of about 1,600 km ( Fig. 1). The valleys are characteristically steep sided, with relief of 1,000–2,000 m. A distinct, flat floor, 3–13 km wide, is common ( Figs. 2 and 3), but some long sections are narrow and V-shaped. The valley floors have gentle longitudinal gradients with low, inconspicuous divides ( Fig. 4).
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  1. Barry, M. J.; Jacoby, W. R.; Niblett, E. R.; and, Stacy, R. A., 1971, A review of geophysical studies in the Canadian Cordillera, Canadian Jour. Earth Sci. 8, 788–801.Google Scholar
  2. Campbell, R. B.; Mountjoy, E. W.; and Young, F. G., 1973, Geology of McBride map-area, British Columbia, Canada Geol. Survey Paper 72–35.Google Scholar
  3. Clague, J. J., 1974, The Saint Eugene Formation and the Development of the southern Rocky Mountain Trench, Canadian Jour. Earth Sci. 11, 916–938.Google Scholar
  4. Leech, G. B., 1965, The Rocky Mountain Trench, in The World Rift System. Ottawa, Ont.: Geological Survey of Canada (Paper 66-14), 307–329.Google Scholar

Copyright information

© Van Nostrand Reinhold Company Inc. 1987

Authors and Affiliations

  • R. B. Campbell
  • H. Gabrielse

There are no affiliations available