State Route 20 closed at Mile Post 134, Ross Dam
After a brief closure at Newhalem due to an avalanche and unstable conditions, SR 20 has re-opened to its normal winter closure point at MP 134, Ross Dam. The highway will remain closed from Ross Dam to MP 171 (Silver Star Creek) until spring re-opening. More »
Ross Dam Haul Road Closure Continues
A short segment of the Ross Dam Haul Road between the Diablo Lake suspension bridge and the tunnel remains closed to public use due to continued recovery following a March 2010 landslide. The closure will remain in effect through 2014. More »
Notice of planned work for the Cascade River Road, fall 2014
Visitors planning to access the park via the Cascade River Road after Labor Day should be advised that the Park Service is planning a fall closure of this road at Eldorado Creek (3 miles before the end of the road) in order to perform permanent repairs. More »
Acknowledgements and References
Our monitoring program is supported by the National Park Service via NOCA base funds and the Vital Signs program. Seattle City Light, U.S.G.S., and Earthwatch have also made valuable contributions to our program, as have faculty and staff at Portland State University and Western Washington University. We also thank the countless volunteers whom have generously contributed to the project in a variety of ways over the years.
Fountain, A.G. and A.V. Vecchia, 1992. How many ablation stakes are enough?, Poster presented at the fall American Geophysical Union Meeting, San Francisco, California.
Granshaw, F.D., 2001. Glacier Change in the North Cascades National Park Complex, Washington State USA, 1958-1998, M.S. Thesis Portland State University.
Krimmel, R.M., 1993. personal communication, US Geological Survey Ice and Climate Project, Tacoma, Washington.
Meier, M.F., 1961. Mass budget of South Cascade Glacier, 1957-1960, U.S. Geological Survey Professional Paper 424-B, pp. B206-211.
Meier, M.F. and W.V. Tangborn, 1965, Net budget and flow of South Cascade Glacier, Washington, Journal of Glaciology, 5, no. 41, pp. 547-566.
Meier, M.F., 1966, Some glaciological interpretations from remapping programs on South Cascade, Klawatti, and Nisqually glaciers, Washington, Canadian Journal of Earth Science, 3(6), pp. 811-818.
Meier, M.F., L.R. Mayo, and A.L. Post, 1971. Combined ice and waterbalances of Gulkana and Wolverine Glaciers, Alaska, and South Cascade Glacier, Washington, 1965 and 1966 hydrologic years, U.S. Geological Survey Professional Paper 715-A, 23 p.
Ostrem, G. and A. Stanley, 1969. Glacier mass balance measurements - a manual for field and office measurements, The Canadian Department of Energy, Mines and Resources, and the Norwegian Water Resources and Electricity Board.
Ostrem, G. and Brugman, M., 1991. “Glacier Mass Balance Measurements – A manual for field and office work.” NHRI Science Report n. 4, Environment Canada, 224 p.
Riedel, J.L., 1987. Chronology of later Holocene Glacier Recession in the Cascade Range, Washington, M.S. Thesis University of Wisconsin-Madison.
Patterson, W.S.B., 1981. The Physics of Glaciers, Pergamon Press, Elmsford, N.Y., 380 p.
Post, A., D. Richardson, W.V. Tangborn, and F.L. Rosselot, 1971. Inventory of Glaciers in North Cascades, Washington, U.S. Geological Survey Professional Paper 705-A.
Tangborn, W.V., R.M. Krimmel, and M.F. Meier, 1971. A comparison of glacier mass balance by glaciological, hydrological, and mapping methods, South Cascade Glacier, Washington, Snow and Ice Symposium, IAHS-AISH Publication no. 104.
Tangborn, W.V., A.G. Fountain, and W.G. Sikonia, 1990. Effect of area distribution with altitude on glacier mass balance - a comparison of North and South Klawatti glaciers, Washington state, Annals of Glaciology, 14, pp. 278-282.
Did You Know?
North Cascades National Park is uploading its digital image library to Flickr! Be inspired, download your favorite images, or even add your own vacation photographs to the group pool: Friends of the North Cascades. More...