Texas Transportation Museum was begun in 1964. It is a volunteer-led organisation that collects, preserves and displays historically significant transportation equipment and related items, including a working passenger railroad, several model train layouts and many road vehicles.
The museum was created to help preserve artifacts and information about San Antonio's transportation history. TTM operates as much of the collection as possible, including many railroad vehicles on its own heritage railroad, the 1/3 mile long Longhorn and Western Railroad, hauled by Baldwin RS-4-TC 1A #4035.
The museum was originally located at the Pearl Brewing Company in Downtown San Antonio and used the tracks of the Texas Transportation Company. In 1967 the museum was granted use of approximately forty acres of what was then known as the Northeast Preserve, now McAllister Park, just north of the San Antonio International Airport on Wetmore Road. The museum is open to the public on Friday 9.00-3.00 and Saturday and Sunday 10.00-5.00.