Lake Chelan, Washingtonby cvtours The Chelan Butte is geologically one of the oldest mountains in the Pacific Northwest. At only 3,835 feet, the Chelan Butte is also a World Class Venue for Hangliding and Paragliding competitions. Beneath the launch area sits the history of the Chelan Butte Gold Rush of 1907. Number Pictures:4 Date Created: 4/18/05