The Clark County Genealogical Society presents “Maps, Maps, Maps and Their Genealogical Clues,” 10 to 11:30 a.m. Oct. 1 at 3205 N.E. 52nd St., Vancouver. Maps can provide a wealth of clues about your ancestors. The presenter will discuss which facts can be found in maps. Afterwards, a free guided workshop will help attendees find and search through maps for information about their families. Students should bring lunch or snacks if staying for both sessions. Tickets for the morning session are $20. Register by calling 360-750-5688. Learn more at ccgs-wa.org.