Rising nearly a mile above the valley floor, Half Dome is Yosemite National Park's signature landmark.

With education, preparation and motivation, nearly anyone can complete the 16-mile hike to its summit and back; in one day. Join Rick Deutsch, author of "One Best Hike: Yosemite's Half Dome," for slides and information on this spectacular day hike.

Find out about acquiring permits, which are now required for any Half Dome hike, every day of the week. A lottery is new for 2012. Don't miss the chance to learn how to prepare for this unique adventure from a seasoned hiker, who has made it to Half Dome's 8,842-foot summit 31 times! For additional information, visit www.HikeHalfDome.com.

The lecture will be held in the large meeting room of the Pleasanton Public Library, located at 400 Old Bernal Avenue. For more information, please call 925.931.3400, x7.