Kenosha Pass is easily one of the most popular places to see the fall colors in Colorado and for good reason. The Colorado trail is one you could hike for 12 miles all the way to Georgia Pass, but you definitely don’t need to go that far to see some gorgeous golden Aspens! It’s dog friendly but you will run into several mountain bikers & maybe even a few horses.
There’s no specific point to turn around, but after 6 miles is when the elevation gain really starts to pick up. Before then it’s not to strenuous and great for beginners and families.