Grand Mountain Bank Address: 902 Grand Ave, Grand Lake, CO 80447 Phone: (970) 627-9500 Hours: Mon: 9am-5pm Tue: 9am-5pm Wed: 9am-5pm Thu: 9am-5pm Fri: 9am-5pm Banks Other Businesses: Gateway Inn at 200 W Portal Rd, Grand Lake, CO 80447 Winding River Resort Village at 1447 County Road 491, Grand Lake, CO 80447 Rapids Lodge & Restaurant at 209 Rapids Ln, Grand Lake, CO 80447 Western Riviera Lakeside Lodging & Events at 419 Garfield St, Grand Lake, CO 80447