UT, United States
It can be done in a day, since it's only 8.5 miles, but lots of folks take advantage of the nice back country campsites and the spring itself to make this one an overnight. There are plenty of forested parts of the trail, making this a pleasant spring through fall hike. Lots of quaking aspen (quakies) groves are along the way as well. Note: treat the water, of course! The Riggs Spring Loop can also be hooked up the Under-the-Rim Trail to make it a truly extended, vigorous back country experience.