The Western Science Center was created from the excavation of Diamond Valley Lake reservoir in 1995. At that time the reservoir was North America’s largest excavation project. This project led to the discovery of over 100,000 fossils. It makes you wonder what scientists would find if they just kept digging.
More than half of all mastodons found in California came from this site in Hemet, including the largest mastodon ever discovered in the western United States (which is prominently displayed at the museum). The museum is small but informative. It is intriguing to learn what organisms roamed these parts long before the human race ever evolved. It is hard not to be a little disappointed by knowing what we missed out on. I think a crossing sign for a 2,000 pound Harlan ground sloth would make a nice addition to a driving test.