But when do the leaves change in Colorado, and where are the best places to see the change? High Country- Mid-SeptemberMountain Towns- Mid-to-late SeptemberNorthern Colorado foothills- Late September into early OctoberFort Collins, Loveland, Greeley- Usually early to mid-OctoberWhere are the best places to see changing leaves? The Oval at CSU is one of the prettiest spots in Fort Collins to see the leaves changing. Top Colorado Towns to Experience Fall Colors in 2025: Best Spots for Leaf Peeping Looking for the best places in Colorado to see fall colors? Whether you’re planning a scenic fall drive or searching for the perfect autumn backdrop, these Colorado mountain towns are some of the top destinations for vibrant fall foliage.