The Tualatin Heritage Center, operated by the Tualatin Historical Society, preserves the city’s oldest church as a present-day community resource offering information and events about the area’s rich and colorful history, its diverse cultures and the natural environment around Tualatin. The Heritage Center also serves as the home to Lumiere Players, Tualatin’s own theatre group and is especially noted for its displays of mastodon and ground sloth bones as well as erratic boulders deposited during the Missoula Floods some 15,000 years ago.