소개
At the end of the last Ice Age, 18,000 to 15,000 years ago, an ice dam in northern Idaho created Glacial Lake Missoula stretching 3,000 square miles around Missoula, Montana. The dam burst and released flood waters across Washington, down the Columbia River into Oregon before reaching the Pacific Ocean. The Ice Age Floods forever changed the lives and landscape of the Pacific Northwest.
출처: U.S. National Park Service (NPS). 일부 이미지는 third-party 라이선스이며 표기된 출처를 따릅니다. 운영시간·입장료 등 최신 정보는 공식 안내를 확인하세요.