Labels:text | map OCR: CANADA Ice Sheet UNITED STATES Grand Coulee Columbia R. Ice MONTANA Dam dan Dry Falls Seattle Channeled Spokane Scablands Glacial MESSOUD Clark Fork R Palouse & Palouse Falls Missoula WASHINGTON PACIFIC cascade Range Cohembia B Wallula Willamette Portland Ga Valley OREGON Snake R. IDAHO 100 km 100 ml