UN 13,015 (formerly UN 13,020 interpolated) near Maroon Lake and Willow Pass has been determined to be no longer a ranked summit per Lidar evaluation, which gives it 292 ft. of prominence. This has reduced the total number of ranked 13ers from 584 to 583.
From the town of Westcliffe: Drive south on HWY 69 for 4.5 miles and turn right onto Colfax Lane (CR119). Proceed about 5.5 miles on this partially paved and graded dirt road to an intersection where you must turn right or left. Go right (west) on CR120 and in about one more mile, if in a low clearance passenger car, park at a fence line. This is referred to by some as the "lower trailhead." If you have a better clearance vehicle (CRV, Outbacks or better) with care you can drive another 2.5 miles to the "upper trailhead" close to and before where the road crosses South Colony Creek. This last 2.5 miles has deteriorated significantly over the last few years. The Forest Service has put in a parking area here that they say can hold about 50 vehicles. On summer weekends, you may find even this amount to be insufficient. Also, the FS has considered introducing a "use fee" of $20, however at the date of this writing, the idea appears to be in limbo. Best to go prepared, however. From the parking area, a bridge takes hikers over South Colony Creek so no need to prepare for wading.
On the 2.5 mile drive into the upper trailhead, there are some at-large spots available and then at the trailhead, the FS has installed 4 - 5 camp spots that have tent platforms and fire rings. There is presently no fee for using these spots. Wag-bags are supposed to be available from a dispensary of some kind to help with the human waste problem. There are no vault toilet facilities. Here's a hint for those peakbaggers spending multiple days in the Westcliffe area and in need of a shower: The Westcliffe Inn, a little south of town on HWY 69, may offer use of their showers for a small fee. We last availed ourselves of this in 2009. Stop in and inquire if they are still open.