To begin this hike, make your way to the Mule Ears Overlook off of Ross Maxwell Scenic Drive. There is no cell reception within the park, so grab a printed map or ask a Ranger for directions if you are nervous about finding the trailhead. The parking area is small, but many visitors forgo the hike for a photo from the overlook instead. There are no facilities, drinking water, or shade at the parking lot, so plan accordingly.

This hike is mapped at 3.5 miles each way, though many hikers choose only to hike in two miles to the stone ranch ruins and nearby spring. While it is rarely more than a trickle for most of the year, the spring should not be disturbed or used as a source of potable water or for bathing. You may, however, enjoy relaxing in the nearby shade before returning back to the trailhead.

Those who choose to venture further on the trail towards Smoky Creek will be welcomed with more spectacular views of the Mule Ears towering above the desert floor. There is a distinct drop in elevation as you approach the end of the trail, though, so do not hesitate to turn around if you are feeling fatigued or are running short on water. This portion of the park is extremely remote, and human interaction is extremely unlikely.

Sources:

https://bigbendguide.com/inside-the-park/hikes/day-hikes/mule-ear-spring-trail/ http://www.texashiking.com/Logs/ShowLog.aspx?LogID=2831