These Labrador Sulphurs Colias nastes aliaska were on the tundra sections of the Steese Highway northeast of Fairbanks, Alaska, on June 24 and 26, 2019:
This Labrador Sulphur Colias nastes aliaska was nectaring on ground-level flowers above the treeline at Flat Top Mountain, SE of Anchorage, Alaska, on July 14, 2007:
