Starting on the north end, this trail is quite easy and pleasant for the first half mile as it winds through aspen and pine forest. It breaks out into semi-desert territory and begins to climb for quite a while, and some folks will have to hike-a-bike, though the only excuse is lung capacity!
Enjoy some nice high views before heading back into forest for a technical, rocky section. Though the trail doesn't climb or descend much here, it will take some time to navigate the rocks.
You'll hit the Robertson Pasture Trail
, where you should probably take a right turn to complete the Abajo Loop: Spring Creek to Robertson Pasture
, though the trail continues on to the left for a short ways before ending.