This site is dedicated to gathering resources and information about the Bay Area 15,000-20,000 years ago – and specifically about the Megafauna that lived during that time. Back before the San Francisco Bay was a bay, it was a verdant green plain, with a single river gushing through it to the sea. The Pacific coastline extended out 12-15 miles further than it does today. This area was once home to mammoths, camels, wolves, bears, lions, giant sloths, and antelope. The Ice Age in the Bay Area was a place teeming with life – and you can learn all about it here.