Please answer the following question: Railroad Canyon a valley originally named San Jacinto Canyon also known as Cottonwood Canyon and Annie Orton Canyon encloses the lower course of the San Jacinto River at the point where the river passes south through the Temescal Mountains from a point 6 miles south-southwest of Perris California through Canyon Lake California then west to Lake Elsinore California. The canyon has its present name from the California Southern Railroad that was constructed down the canyon in 1882. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
Answer:
Natural Place