page_title: Chikamin Peak
section_title: Geology
hierarchical_section_title: Chikamin Peak / Geology
caption_attribution_description: English: Pacific Crest Trail crossing the southwest face of Chikamin Peak (6960 feet, upper right)
context_page_description: Chikamin Peak is a 7,000+ ft mountain summit located in the cascade Range, in Kittitas County of Washington state. It is situated within the Alpine Lakes Wilderness, on land managed by Okanogan-Wenatchee National Forest. The mountain's name "Chikamin" derives from Chinook Jargon meaning "money" or "metal", and was submitted by Edmond S. Meany, president of The Mountaineers. This name was officially adopted in 1916 by the U.S. Board on Geographic Names. Chikamin Peak is the highest point of Chikamin Ridge, 6 mi northeast of Snoqualmie Pass. Other notable peaks on Chikamin Ridge include Four Brothers and Three Queens. Precipitation runoff from this mountain drains into tributaries of the Yakima River. The Pacific Crest Trail traverses the southwest slope of Chikamin Ridge, and from the trail a scramble up a gully leads to the summit.
context_section_description: The Alpine Lakes Wilderness features some of the most rugged topography in the Cascade Range with craggy peaks and ridges, deep glacial valleys, and granite walls spotted with over 700 mountain lakes.  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 elevation range of this area is between about 1,000 feet (300 m) in the lower elevations to over 9,000 feet (2,700 m) on Mount Stuart.
  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 last glacial retreat in the Alpine Lakes area began about 14,000 years ago and was north of the Canada–US border by 10,000 years ago. The "U"-shaped cross section of the river valleys are a result of that 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 Alpine Lakes Wilderness area.
caption: Pacific Crest Trail and gullies on Chikamin Peak
exif: {"Image Make": "Panasonic", "Image Model": "DMC-FZ5", "Image Orientation": "Horizontal (normal)", "Image XResolution": "72", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Ver.1.0", "Image DateTime": "2007:09:26 15:27:41", "Image YCbCrPositioning": "Co-sited", "Image ExifOffset": "430", "GPS GPSVersionID": "[2, 2, 0, 0]", "GPS GPSLatitudeRef": "N", "GPS GPSLatitude": "[47, 26, 49497/2500]", "GPS GPSLongitudeRef": "W", "GPS GPSLongitude": "[121, 19, 20553/500]", "GPS GPSAltitudeRef": "0", "GPS GPSAltitude": "508723/291", "Image GPSInfo": "6698", "Image PrintIM": "[80, 114, 105, 110, 116, 73, 77, 0, 48, 50, 53, 48, 0, 0, 14, 0, 1, 0, 22, 0, ... ]", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail Orientation": "Horizontal (normal)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "6962", "Thumbnail JPEGInterchangeFormatLength": "7897", "Thumbnail YCbCrPositioning": "Co-sited", "EXIF ExposureTime": "1/800", "EXIF FNumber": "4", "EXIF ExposureProgram": "Program Normal", "EXIF ISOSpeedRatings": "80", "EXIF ExifVersion": "0220", "EXIF DateTimeOriginal": "2007:09:26 15:27:41", "EXIF DateTimeDigitized": "2007:09:26 15:27:41", "EXIF ComponentsConfiguration": "YCbCr", "EXIF CompressedBitsPerPixel": "4", "EXIF ExposureBiasValue": "-33/50", "EXIF MaxApertureValue": "3", "EXIF MeteringMode": "Pattern", "EXIF LightSource": "Unknown", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "177/5", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "2560", "EXIF ExifImageLength": "1920", "Interoperability InteroperabilityIndex": "R98", "Interoperability InteroperabilityVersion": "[48, 49, 48, 48]", "EXIF InteroperabilityOffset": "6668", "EXIF SensingMethod": "One-chip color area", "EXIF FileSource": "Digital Camera", "EXIF SceneType": "Directly Photographed", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF DigitalZoomRatio": "0", "EXIF FocalLengthIn35mmFilm": "212", "EXIF SceneCaptureType": "Standard", "EXIF GainControl": "None", "EXIF Contrast": "Normal", "EXIF Saturation": "Normal", "EXIF Sharpness": "Normal"}