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.
Newly added in 2022 from previous soft-rank status by LIDAR technology, this summit has two basic approaches from the west side and Independence Lake or the east side following the Lake Fork. From the west side, it's a minimum Class 2+ on difficult, steep, gravel and rock terrain. On our ascent, it became brief Class 3 near the summit. The east side approach can be kept at Class 2 but requires a few more miles hiking.