Mount Rainier National Park
Land of Ice
Volcanic activity built Mount Rainier, but it is glaciers that shape it. True glaciers consist of at least three layers: snow, mixed snow and ice, and pure ice. They are formed because the mountain's winter snowfall surpasses its summer snowmelt. Season after season, the snowpack accumulates and its weight compresses the snow below into glacier ice.
Heavy snow accumulation expands the glacier, with its weight pushing and moving the existing ice. This is offset by melting at the terminus (or snout) of the glacier. Glaciers are called "rivers of ice" because they move down the steep mountain valleys, ebbing and flowing with climatic conditions. The rate of movement varies, depending on the rate of snowfall and snowmelt. Mount Rainier's glaciers move from just a few inches up to two feet per day, depending on the steepness of the slope. Great crevasses open in the glacier when stresses on the ice cause it to separate.
More than 35 square miles of glaciers radiate out from Mount Rainier's summit, the largest collection of glaciers on one peak in the contiguous U.S. The mountain has 26 named glaciers and numerous smaller, unnamed glaciers and ice fields.
Mt. Rainier In Depth
News from the Parks
Frommer's Top 5 Parks for Cozy Camping
November 21, 2008 - 10:01am
I always look forward to getting my Frommer's newsletter every week. Not only are they budget travel saavy, they inspire me to get out there no matter the weather! Here are their top five picks for cozy camping.
November 21, 2008 - 10:01am
I always look forward to getting my Frommer's newsletter every week. Not only are they budget travel saavy, they inspire me to get out there no matter the weather! Here are their top five picks for cozy camping.
Park to Reopen Today after Crews Repair Road, Channel Kautz Creek
November 21, 2008 - 9:56am
The Nisqually Road in Mount Rainier National Park will reopen today, a day earlier than expected. The road, and the park, have been closed since Nov. 12 when Kautz Creek jumped its banks and flooded the main road into the park.
November 21, 2008 - 9:56am
The Nisqually Road in Mount Rainier National Park will reopen today, a day earlier than expected. The road, and the park, have been closed since Nov. 12 when Kautz Creek jumped its banks and flooded the main road into the park.
Jenna Otter Returns to Scene of Grizzly Bear Attack
November 21, 2008 - 9:55am
Reporting from Glacier National Park -- No one knew what to expect on the trail to Grinnell Glacier one late summer morning, but a second bull moose less than an hour out was hardly a good sign. During September and October -- mating season -- it's always best to give the spindly-legged animals plenty of room.
November 21, 2008 - 9:55am
Reporting from Glacier National Park -- No one knew what to expect on the trail to Grinnell Glacier one late summer morning, but a second bull moose less than an hour out was hardly a good sign. During September and October -- mating season -- it's always best to give the spindly-legged animals plenty of room.
Expected Rule Change Would Benefit Bicycling in National Parks
November 21, 2008 - 9:07am
An upcoming National Park Service (NPS) rule change could greatly benefit mountain bicycling by improving the administrative process for opening trails to bicycles. IMBA has been asking the agency to revise its policies since 1992, because the current "special regulations" process is needlessly cumbersome and treats bicycles like motorized vehicles.
November 21, 2008 - 9:07am
An upcoming National Park Service (NPS) rule change could greatly benefit mountain bicycling by improving the administrative process for opening trails to bicycles. IMBA has been asking the agency to revise its policies since 1992, because the current "special regulations" process is needlessly cumbersome and treats bicycles like motorized vehicles.
Things Slow At Hawaii's National Parks
November 21, 2008 - 8:55am
On our recent trip to Hawaii we had a feeling that things were less busy than usual. Now there are some numbers to back up our hunch: The national parks in the state saw a drop in attendance of more than 50,000 visitors during the month of October.
November 21, 2008 - 8:55am
On our recent trip to Hawaii we had a feeling that things were less busy than usual. Now there are some numbers to back up our hunch: The national parks in the state saw a drop in attendance of more than 50,000 visitors during the month of October.
