page_title: Welch Peak
section_title: Geology
hierarchical_section_title: Welch Peak / Geology
caption_attribution_description: English: Welch Peak in Skagit Range of North Cascades
context_page_description: Welch Peak is a 2,431-metre mountain summit in the Cheam Range, located in southwestern British Columbia, Canada, near Chilliwack. It is the highest summit in the range. The mountain is named after one of the partners in the engineering firm Foley, Welch and Stewart who built and operated the Lucky Four Mine located near the peak. Nearby peaks are also named after the other partners.
context_section_description: Welch Peak is related to the Chilliwack batholith, which intruded the region 26 to 29 million years ago after the major orogenic episodes in the region. This is part of the Pemberton Volcanic Belt, an eroded volcanic belt that formed as a result of subduction of the Farallon Plate starting 29 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.
  The North Cascades features some of the most rugged topography in the Cascade Range with craggy peaks and ridges, deep glacial valleys, and granite spires. Geological events occurring many years ago created the diverse topography and drastic elevation changes over the Cascade Range leading to various climate differences which lead to vegetation variety defining the ecoregions in this area.
caption: Welch Peak
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