Annual report of the United States Geological Survey to the Secretary of the Interior . map of the Cascade Mountains in northern Washington 90 (A. Glacier Peak from the south ) X \ ? r 98 (B. Snow field on south side of Glacier Peak j XI. Mount Stuart from south side of Ingall Canyon 106 XII. Dikes in Swank sandstone, head of Stafford Creek 120 XIII. The Cascade Mountains near Monte Cristoe 140 XIV. Rock-basin lake at Head of Ingall Creek 154 XV. Mount Stuart granite on north side of Ingall Creek 156 XVI. Pleistocene gravel near Liberty 174 XVII. Rock rising through the Great Terrace of the Co
Annual report of the United States Geological Survey to the Secretary of the Interior . map of the Cascade Mountains in northern Washington 90 (A. Glacier Peak from the south ) X \ ? r 98 (B. Snow field on south side of Glacier Peak j XI. Mount Stuart from south side of Ingall Canyon 106 XII. Dikes in Swank sandstone, head of Stafford Creek 120 XIII. The Cascade Mountains near Monte Cristoe 140 XIV. Rock-basin lake at Head of Ingall Creek 154 XV. Mount Stuart granite on north side of Ingall Creek 156 XVI. Pleistocene gravel near Liberty 174 XVII. Rock rising through the Great Terrace of the Columbia 178 XVIII. Sketch map showing Pleistocene glaciers on the east side of the Cascades 192 \A. Lake in landslide basin, Lookout Mountain ) XIX r 196 ~ {B. Landslide topography, near Lookout Mountain j XX. Portion of a brecciated vein, Swauk mining district 206 Fig. 3. Sketch map showing junction of the Methow with the Columbia 177 4. Section through Lookout Mountain, showing landslides 198 87 UBRASY OF THE UNIVERSITY af ILLINOIS. GEOLOGICAL SURVEY 125° 124° 123° 122°. TWENTIETH ANNUAL REPORT PART II PL VIII \2f 120° 119° 118 117
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