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Reconnaissance geology of the 500-square-mile wilderness north of the Skagit River, and the mineral survey that was made before it became a park.
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
A description of the volcanic deposits surrounding Irazú Volcano, and factors involved in slope stability and landslide control.
* Explains the geologic natural history of the North Cascades * Appeals to hikers who are fascinated by the region, as well as amateur geologists * Authors are both geologists with the US Geological Survey Composed of everything from volcanic island arcs and deep ocean sediments, to parts of old continents and even pieces of the deep subcrustal mantle of the earth, Washington's North Cascade region is a true geologic mosaic. Here, authors Tabor and Haugerud reveal that the spectacular scenery of these mountains is matched by equally spectacular geology. Beginning with a summary of the geologic history of the North Cascades, the first section also offers the novice a primer on geologic terms and processes. The second section covers more than 150 accessible sites of geologic interest, arranged by reference to the rivers and streams of the range. Many new ideas about the rocks and geologic processes in the North Cascades are introduced, making this a must-read for those studying the region.
The wilderness study areas are Orderville Canyon, North Fork Virgin River, Deep Creek, Goose Creek Canyon, Beartrap Canyon, LaVerkin Creek Canyon, Taylor Creek Canyon, and Red Butte.