The Reach center in Richland is offering a tour April 25 that focuses on Ice Age erratics of Rattlesnake Mountain.
Geologist and author Bruce Bjornstad will lead the tour, which will include a 4 to 5 mile, easy-to-moderate hike across the publicly accessible Rattlesnake Slope Wildlife Area. “The hike will focus on the thousands of ice-rafted erratics and bergmounds — calling cards of the Ice Age floods,” a news release said.
The tour is 9 a.m. to 4 p.m. and include lunch and transportation. Cost is $60.