23 April 2002, Snow Canyon State Park, UT: We did a drive-by of Zion National Park, but were unable to take the tourist density and National Park Service for more than a few minutes (NPS put a huge solar collection array on the roof of their visitor center... and then planted shade trees that cover it.) So, off to a nearby state park we knew and liked from a previous trip. On a long hot hike we came across many prickly pear blooms.