Closed Canyon is a slot canyon located in the Big Bend Ranch State Park.  The trailhead is just off of Farm to Market Road 170, and the hike is about 1.4 miles long round trip.  It is a beautiful place.  According to the brochure, “Mountain lion, javelina, rock squirrels and a variety of lizard and snake species including the greater earless lizard, desert spiny lizards and the western diamondback rattlesnake may be seen in or near the canyon.”  Lucky for me, I had the Canyon all to myself.