Quiz: How deep is Crater Lake, making it the deepest lake in the U June 22, 2025 by Gideon Lakewood How deep is Crater Lake, making it the deepest lake in the United States? Discover more about Crater Lake Tours at our home page. A) 1,943 feet B) 1,500 feet C) 2,000 feet D) 1,800 feet Submit Answer