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Audubon: Glacial and Post Glacial Influence on the Northwest Washington Environment


Join the North Cascades Audubon Society as Engineering Geologist Dan McShane provides us with insights into the glacial influence on our environment and what we can expect in the future. Between 18,000 and 13,000 years ago the lowlands of northwest Washington were covered in nearly 6,000 feet of glacial ice. The natural resources, locations of cities and towns, and transportation routes are all impacted by the glacial period. Lidar (light detecting and ranging) has helped us better visualize our landscapes and allows for a better understanding of the glacial, late glacial and post glacial history of the land we live on. Understanding the glacial history provides insights into geologic hazards, natural resource management, how communities have grown and the future challenges.