In 1969, just below the confluence of the Rio Grande, Devils and Pecos Rivers, a dam was built, creating Lake Amistad (friendship en Español). The lake caused the mouths of the Pecos River and Seminole Creek (above) to silt up, and now that the water level has fallen (like Lake Mead and Lake Powell) they’re cut off from the Rio Grande (see far right). Most of the boat ramps, like the small dock at the cave above, are no longer accessible. The lake is far below minimum expectations, because the US diverts virtually all the Rio Grande water before it even reaches Big Bend. From there most of the river comes from Mexico’s Río Conchos. The park is run in partnership with many agencies, and the two towns that share the border are friendly and have joint cultural festivals annually. Mexico maintains a small fishery, US residents enjoy bass fishing, and the border is marked with buoys. I took one of the old highway ‘spurs’ straight down to the water, but it was too hot to kayak in winter.

Panther Cave, across the canyon above, is on the far western park boundary. While the park film absurdly claims that “no Native Americans have any ties to the area”, the canyon is Seminole Canyon, and the cave is an important site for prehistoric cave art. The Amistad visitor center has information and large reproductions of the cave art, and the excellent Seminole Canyon State Park has morning ranger-led tours to another similar cave and a few miles of hiking trails to see the view above. Before man dammed and drained the rivers and destroyed the riparian ecosystems, Native Americans must have traveled up the Rio Grande to Albuquerque, where some of the oldest petroglyph art was created at the same time as the art here. Sitting on the cliff above observing the wildlife, I imagined prehistoric people hunting, traveling by canoe, drawing on the cave walls and protecting their families from panthers, until thunder warned me to seek shelter.