Lake Meredith is an important water source for this region and Lake Theo contains a Folsom Society buffalo kill site. The Rita Blanco grasslands are partially located in this region and a rails-to-trails project passes through a prominent bat colony in the Clarity Tunnel in 
Lake Meredith is an important water source for this region and Lake Theo contains a Folsom Society buffalo kill site. The Rita Blanco grasslands are partially located in this region and a rails-to-trails project passes through a prominent bat colony in the Clarity Tunnel in this region where the Cliffside Storage Facility is home to the US National Helium Reserve, though Deaf Smith County in this region was eventually rejected as a nuclear waste storage site. The Alibates Flint Quarries are located in this region while the (*) Cap Rock escarpment has eroded into a number of canyons, including one formed by the Prairie Dog Fork into the Palo Duro Canyon. Also containing portions of the  ? Red and Canadian rivers as well as the roadside monument known as Cadillac Ranch, for 10 points identify this region containing the city of Amarillo.
Lake Meredith is an important water source for this region and Lake Theo contains a Folsom Society buffalo kill site.
{Texas Panhandle} (prompt on {Panhandle}, on {just Texas}, or on {Llano Estacado})