Title: Ice Age Land Bridge Contact: Theophilus Britt Griswold Description: Ice Age lowered the sea level about 300 feet, revealing a land bridge across the Bering Straits. Keywords: Siberia, Alaska, Snow, Earth, Migration, Indian Media: Color Categories: Historic, Nature, Science Subject(s): Geology, Paleontology, Institutional, Landscape, Storybook Displaying image 2579 of 2587. Gallery of Griswold Artworks Email Theophilus Britt Griswold about this image. Copyright 1986 Theophilus Britt Griswold. This image is available for reuse purchase. Please review the Comp. Usage Agreement before downloading this image. To email this image to someone else, copy and paste this address: http://www.science-art.com/image.asp?id=51&m=0