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.
The uninteresting "Sundog" Peak can be easily hiked from the summit of the 14er, Sunshine Peak. Utilizing the same trailhead as for the standard Redcloud-Sunshine ascent, peakbaggers can climb Sundog by following the Redcloud-Sunshine route and then following a connecting ridge to Sundog, or be more adventuresome and blaze their own route, possibly by ascending the north ridge of Sundog from Silver Creek. Class 2 hiking. Pre-Lidar elevation was 13,432.