Tualatin will formally dedicate the Tualatin Public Library as a temporary visitor center for the Ice Age Floods National Geologic Trail

The dedication begins with a reception and ribbon cutting at 3 p.m. At 4 and 5 p.m., attendees can view the video “Tualatin: Crossroads of the Ice Age Floods.” The short documentary, created by the Tualatin Ice Age Foundation, focuses on the Missoula floods that occurred 15,000 to 18,000 years ago, when a massive ice dam stretched across much of what is now northern Idaho and Montana. That dam periodically burst and reformed. It released floodwaters that rushed across Washington and Oregon to the Pacific Ocean, carving the landscapes we now know.

Scott Burns, a professor emeritus of geology at PSU, said he’s looking forward to the opening of the new temporary visitor center at the library at 18878 S.W. Martinazzi Ave.