- Theophilus Britt Griswold
- Ice Age Land Bridge
- Color
Collection: Maps & Signs x
Ice Age lowered the sea level about 300 feet, revealing a land bridge across the Bering Straits.
- Collections: Geology, Maps & Signs
Collection: Maps & Signs x
Ice Age lowered the sea level about 300 feet, revealing a land bridge across the Bering Straits.