Colorado's $5 billion tourism industry is on edge as images of smoke-choked Pikes Peak and flaming vacation cabins near Rocky Mountain National Park threaten to scare away summer tourists. The state is having one of its worst fire seasons just at the height of midsummer family road-trip season. Pikes Peak RV Park is usually packed ahead of the July 4 holiday. But it's empty after a weekend fire burned out of control in nearby Waldo Canyon. The famous mountain was obscured by smoke.The town of Manitou Springs was evacuated on Sunday, leaving shops and restaurants empty on a busy summer Sunday.A wildfire in Estes Park burned 22 homes and cabins and closed one of the main entrances to Rocky Mountain National Park over the weekend. Other businesses that rely on vacationers say the fire has spooked customers. One resident says she's already lost a booking for her vacation cabin for the week of July 4, which is typically her easiest time to rent it out.