Sierra Silver Mine Tours

A "Think & Drink" conversation hosted by Humanities Washington, "Bit by Bit: The Digital Evolution of the Neighborhood," hosted by local technology experts. May 22 at 7:30 pm. Free.

Spokane Valley citizens are invited to view the draft masterplan for the Appleway Trail proposed shared-use pathway from Appleway at University to Evergreen. May 22 from 4-6 pm. Free. CenterPlace, 2426 N. Discovery Pl. spokanevalley.org (720-5014)

Learn what essential oils are, how to use them and their health benefits. May 25 from 3-5 pm. $5, preregistration required. Sun People Dry Goods Co., 32 W. Second Ave. sunpeopledrygoods.com (368-9378)