Brad Dimock, Colorado River guide, river dory historian, dory builder, teacher, and owner-operator of Fretwater Boatworks in Flagstaff, AZ, will be a featured presenter at the McKenzie River Discovery Center’s Hatchery building on Saturday evening, April 22 from 5:30 to 7:00, including a reception from 5:00 to 5:30. His talk will tie into the evening’s theme, Spawning Grounds: It Started with this River and will be a show-and-tell of the links between the McKenzie, Rogue and Colorado dories, some of the histories therein, and generally enamor the audience with tales of connections, exploits and good humor.