I’ve never heard of Maroon Bells Scenic Area in Colorado, but as the images here show, it looks beautiful. The Forest Service has a nice PDF guide to the area available online. Maroon Lake is inside of White River National Forest.
The area is beautiful, but pretty remote. It is about 12 miles west of Aspen, but there are these Rocky Mountains in the area that slow down a lot of travel… there are direct roads between a lot of places.