Roadside Summit, Part I—The Geology & Vegetation of Summit County, Colorado


by Dr. Sandra F. Mather

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Summit County has not always been the home of towering mountain peaks; once there were swampy lagoons and dinosaurs eating lush tropical vegetation growing on vast lowlands crossed by lazily flowing streams. As the reign of the dinosaurs came to a close, tremendous pressure deep within Earth began to raise the lofty Rockies. More than ten thousand years ago, huge rivers of ice carved distinctive features on the landscape. Six travelogues with maps and photographs identify the geologic and vegetative features along the county’s major roadways.