Grand Junction Chamber of Commerce building (second location), Grand Junction, Colorado 1982 360 Grand Avenue Grand Junction Mesa Colorado 81501 USA The Grand Junction Chamber of Commerce building at 360 Grand Avenue opened in 1982, following a dedication ceremony on August 10th. Dale Hollingsworth and Denny Granum of the Chamber spoke at the dedication, as did Mayor Louis Brach and Commissioner Maxine Albers. The building still houses the Chamber. yes yes