The Western Science Center, formerly the Western Center for Archaeology & Paleontology, is a museum located near Diamond Valley Lake in Hemet, California. The WSC is home to a large collection of Native American artifacts and Ice Age fossils that were unearthed at Diamond Valley Lake, including "Max", the largest mastodon found in the west…The Western Science Center, formerly the Western Center for Archaeology & Paleontology, is a museum located near Diamond Valley Lake in Hemet, California. The WSC is home to a large collection of Native American artifacts and Ice Age fossils that were unearthed at Diamond Valley Lake, including "Max", the largest mastodon found in the western United States, and "Xena", a Columbian mammoth, as well as dinosaur fossils recovered from New Mexico.