Santa Susana is one of three rural towns in Simi Valley that began at the turn of the 20th century. The town derives its name from the surrounding mountains, Sierra de Santa Susanna, and grew up alongside the railroad depot built by the Southern Pacific Company in 1903. The history of Santa Susana can be traced back to the Chumash Indian village of Ta'apu and a Spanish land grant, El Rancho Simi. The area was first surveyed by the Simi Valley Land and Water Company in 1887 for the sale of ranches. By the mid-1950s, Santa Susana had become a recognized agricultural center, noted for citrus and walnut production. Corriganville and Bottle Village are unique tourist destinations that originated near the Santa Susana Airport. In the surrounding mountains, quirky religious groups established communes away from the public with strange names and stories: Pisgah Grande, The Great Eleven Club, and WKFL Fountain of the World.