El Caballo Blanco trace back to Bodeguero and those first mares. El Caballo Resort was established in 1974 at Wooroloo and their dancing horses were a popular tourist attraction. Williams established the El Caballo Blanco theme park at Catherine Field near the Sydney suburb of Narellan. Its main attraction was its Andalusian dancing stallions, but the park also featured miniature Fallabella horses, and a number of non-equestrian related amusements such as water slides, train rides, and a small wildlife zoo. Williams then went on to establish an El Caballo Blanco park at Disneyland in the US. After Williams' death in the US, the
Caballo Mountains 34.9 Ma. What is now the San Mateo Mountains (Socorro County) contained at least two cauldrons, the Nogal Canyon cauldron (28.6 Ma) and the Mount Withington cauldron (27.4 Ma). Local subsiding appears to have begun around 34.9 Ma. The Caballo Mountains began to rise in the late Oligocene, and throughout the Miocene. Approximately 9.6 Ma, the eruption of basalts near Fort Selden signaled the renewal of crustal extension and volcanism in the southern part of the rift. Activity along both older and new faults increased the number, but decreased the width of basins along this portion of the rift. The