DescriptionIndian Heaven Volcanic Field and Mount Adams Volcanic Vicinity Digital Relief Map.png
English: The South Cascades region of Washington (mainly the Gifford Pinchot National Forest) is characterized by ancient volcanic activity. The map shows the locations of the major eruptive volcanoes in the region from the Wind River to the 60 eruptive centers which lie on the Indian Heaven fissure zone, northeast to the King Mountain fissure zone along which Mount Adams was built.