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.
TO TRAILHEAD: From the Panther Junction Visitor Center, drive east toward Rio Grande Village. In 18 miles, just past Tornillo Creek Bridge, turn left onto Ore Road (high clearance vehicles recommended). Drive 4.6 miles and turn right toward the Ernst Tinaja Campground and proceed 0.4 miles to the trailhead.
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Points of Interest
Location: 29.253305, -103.017812
Set out toward Ernst Tinaja by turning left and following the wash from the end of Ore Road and the Ernst Tinaja backcountry campground. Bring plenty of water with you, though the tinaja is a water source for local wildlife, you shouldn't drink from it.
Location: 29.255393, -103.013896
Hiking into the canyon, you'll see bent and twisted layers of striated rock, evidence of volcanic and tectonic activity here since the Upper Cretaceous. Erosion is also at work here. Piles of rubble remain where huge chunks have dropped from the cliffs and shattered.
Location: 29.256947, -103.009754
The largest of several deep 'tanks' carved into the rock, Ernst Tinaja almost never dries up, but the water level is veriable. When the water is low, it's especially dangerous for animals that fall into the pool but can't climb out.
Location: 29.257078, -103.009186
If you continue climbing past Ernst Tinaja, you'll pass several smaller pools before this natural arch formation blocks the canyon trail. Though it's possible to continue further if you're equipped for climbing, most people end this hike here.
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