“Bainbridge’s Glacial Heritage” with Greg Geehan is the topic of the Brown Bag Lunch Lecture at 11:30 a.m. Friday, Sept. 11 at Waterfront Park Community Center.

Geehan, a local geologist, will delve into Bainbridge’s glacial history and illustrate how the natural history of Bainbridge influences our existing environment.

This lecture series is a partnership between the Bainbridge Island Land Trust and the West Sound Wildlife Shelter. A suggested donation of $3 supports the missions of these organizations.