This short trail, about 5 miles north of the Rio Grande Village on the park’s east side, is an easy hike north and east from the Ernst Tinaja backcountry campground. You’ll follow a rocky creekbed toward a narrowing canyon, keeping the sandy hills on your right as you cross uplifted slabs scattered with gravel and rocks. Water-eroded canyon walls reveal bent and twisted layers of rock as the trail climbs gently and narrows. Look for lizards, tadpole-filled puddles and desert plants—including the citrus-scented lemoncillo and small, desert persimmon—as you continue walking east. The trail rises into the Boquillas Formation toward the deep pool that is the destination of this hike. “Tinaja” is the Spanish word for an earthenware jug and Ernst Tinaja is the biggest in the area and has served as an important water source for humans and animals for generations. Stay clear of the tinaja’s edge—animals sometimes drown in it trying to reach the water—and don’t contaminate it by swimming or littering. There are several smaller tinajas furhter up the canyon, but a large arch formation chokes the trail within a few hundred yards.
The drive up Ore Road requires a high-clearance and/or 4WD vehicle and may be impassable after rain. Check conditions before heading for this trail, or consider hiking the 5-mile dirt road and making this trip an overnight.
-Mapped by Melissa Gaskill