Located on the South side of hwy 337, ten miles out from medina has lost its markers.  they reportedly are in the stone fence to the south. 
The markers may not have still had inscriptions but the name was known to be 'Crockett'. When new hwy 337 was built the local citizens protected it, however since that time new landowners have removed the tombstones and stacked them in the rock fence. All that is can be seen now is mowed grass.
The only way to find this one today is with latitude and longitude. 

29.7738/-99.4123 decimal degrees marks its location forever, despite its desecration.
 

However in the Bandera Cemetery book there is a reference to the Tuff Cemetery being called that however that appears to be a mistake.