San Mateo County Libraries will be closed Sunday, December 24, 2017 - Monday, December 25, 2017 for Christmas and Sunday, December 31, 2017 - Monday, January 1, 2018 for New Year's.
To offer you better service, we are moving to a new mobile
app. Our current mobile app will not be available after January 3, 2018.
Projected launch for the new mobile app is February 1, 2018. You can still
connect with us on our mobile friendly site, smcl.org. We apologize for any
Alert "A mining operation in Colombia opened a window into an unknown period of the earth’s history—where a world with giant creatures emerged. The biggest of them all was Titanoboa—a 43-foot snake, the largest that ever lived. New discoveries suggest that Titanoboa’s rule was challenged by a giant crocodilian. Experiments reveal unmatched hunting prowess. So which one was the apex predator 58 million years ago?"
Baker & Taylor Scientists uncover evidence of giant creatures that lived in Cerrejâon, Colombia 58 million years ago.