| Paul Bunyans Stump | |
| Elevation Ft: | 7513 |
| Prominence Ft: | 920. |
| Isolation Mi: | 0.91 |
| Isolation Ref: | [1] |
| Parent Peak: | Neve Peak (7,505 ft) |
| Map: | Washington#USA |
| Country: | United States |
| State: | Washington |
| Region: | Whatcom |
| Region Type: | County |
| Part Type: | Protected area |
| Part: | North Cascades National Park |
| Range: | North Cascades Cascade Range |
| Coordinates: | 48.666°N -121.15°W |
| Topo: | USGS Diablo Dam |
| First Ascent: | August 2, 1931 by William Degenhardt, Herbert Strandberg |
| Easiest Route: | class 3 Scrambling |
Paul Bunyans Stump is a 7513feet mountain summit in the North Cascades Range of Washington, United States.[2] It is located within North Cascades National Park. It rises steeply from Diablo Lake, one of the reservoirs on the Skagit River. It is part of a group of peaks that form the northern end of a chain running south through climbing destinations such as Colonial Peak and Snowfield Peak. The nearest peak to Paul Bunyans Stump is Pinnacle Peak, 0.37miles to the north, and the nearest higher peak is Neve Peak, 0.9miles to the southeast. Like many North Cascade peaks, Paul Bunyans Stump is more notable for its large, steep rise above local terrain than for its absolute elevation. Precipitation runoff from the mountain drains into Diablo Lake and Skagit River.
Paul Bunyans Stump was first climbed on August 2, 1931, by William Degenhardt and Herbert Strandberg of the Seattle Mountaineers. They called it "What's the Matterhorn."[3]
Paul Bunyans Stump is located in the marine west coast climate zone of western North America.[4] Weather fronts originating in the Pacific Ocean travel northeast toward the Cascade Mountains. As fronts approach the North Cascades, they are forced upward by the peaks of the Cascade Range (orographic lift), causing them to drop their moisture in the form of rain or snowfall onto the Cascades. As a result, the west side of the North Cascades experiences high precipitation, especially during the winter months in the form of snowfall.[5] Because of maritime influence, snow tends to be wet and heavy, resulting in high avalanche danger. During winter months, weather is usually cloudy, but, due to high pressure systems over the Pacific Ocean that intensify during summer months, there is often little or no cloud cover during the summer.[6]
The North Cascades features some of the most rugged topography in the Cascade Range with craggy peaks, spires, ridges, and deep glacial valleys. Geological events occurring many years ago created the diverse topography and drastic elevation changes over the Cascade Range leading to the various climate differences.
The history of the formation of the Cascade Mountains dates back millions of years ago to the late Eocene Epoch.[7] With the North American Plate overriding the Pacific Plate, episodes of volcanic igneous activity persisted.[7] In addition, small fragments of the oceanic and continental lithosphere called terranes created the North Cascades about 50 million years ago.[7]
During the Pleistocene period dating back over two million years ago, glaciation advancing and retreating repeatedly scoured the landscape leaving deposits of rock debris.[7] The U-shaped cross section of the river valleys is a result of recent glaciation. Uplift and faulting in combination with glaciation have been the dominant processes which have created the tall peaks and deep valleys of the North Cascades area.