page_title: Diobsud Buttes
section_title: Geology
hierarchical_section_title: Diobsud Buttes / Geology
caption_attribution_description: English: Diobsud Buttes in winter seen from Oakes Peak. North Cascades of WA
context_page_description: Diobsud Buttes are summits near the western edge of the North Cascades, in Skagit County of Washington state. It's located north of Marblemount, Washington, and Helen Buttes in the Noisy-Diobsud Wilderness, on land administered by the Mount Baker-Snoqualmie National Forest. The nearest higher peak is Logger Butte, 0.85 mi to the north. Precipitation runoff from Diobsud Buttes drains into tributaries of the Skagit River.
context_section_description: The North Cascades features some of the most rugged topography in the Cascade Range with craggy peaks, 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. These climate differences lead to vegetation variety defining the ecoregions in this area.
  The history of the formation of the Cascade Mountains dates back millions of years ago to the late Eocene Epoch. With the North American Plate overriding the Pacific Plate, episodes of volcanic igneous activity persisted.  In addition, small fragments of the oceanic and continental lithosphere called terranes created the North Cascades about 50 million years ago.
  During the Pleistocene period dating back over two million years ago, glaciation advancing and retreating repeatedly scoured the landscape leaving deposits of rock debris. The "U"-shaped cross section of the river valleys are 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.
caption: Diobsud Buttes in winter seen from Oakes Peak
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