State of Washington
Adjacent Parts of Oregon, Idaho and British Columbia
Including the adjacent parts of Oregon, Idaho and British Columbia, the 24" x 38" map sheet is designed as an educational tool, with a backside text and illustrations that summarize the state's geologic and geographic settings, its natural resources, economy and culture, historic highlights, and state and national parks and wilderness and recreation areas. The geologic "story behind the scenery" covers from early Tertiary time through the Pleistocene "Ice Ages" Epoch-with its volcanic activity, vast glacier advances into and retreats from the area, and the gigantic floods that periodically inundated eastern Washington, to form the coulees of the Channeled Scabland. Price $10.50
