Discover the hidden history beneath Thurston County’s soil—where ancient glaciers dragged colossal stones across thousands of miles and floodwaters reshaped the Pacific Northwest. From personal discoveries in the author’s backyard to the awe-inspiring remnants of the Missoula Floods, this book uncovers the fascinating geological forces that shaped Washington State. With accessible explanations, historic photos, and firsthand accounts, this is a must-read for amateur geologists, local historians, and curious minds alike.