The San Fernando Valley was first settled in modern day, with the establishment of the San Fernando Mission. The mission had a thriving herd, farm, and vineyard using natural springs. The area continued to grow as an agricultural area relying on rain water and ground water. In years of droughts the ground water was necessary to maintain crops and sustain herds. This worked well until the City of Los Angeles claimed it was entitled to the water of the San Fernando Valley through Pueblo Rights. Pueblo rights came from the founding of the Pueblo of Los Angeles in 1781 and was left in place with the Treaty of Guadalupe-Hildago finishing the Mexican-American War of 1846- 48. The treaty stated that the United States would “inviolably respect” all property rights put in place previously. In 1850, Los Angeles was incorporated. Then in 1879, the city started claims by the pueblo that recognized the LA river and ground water of the San Fernando Valley as belonging to the city. The California Supreme Court ruled in 1899 that the City of Los Angels had the right to this claim. This left many farmers, orchards and land holders without water because the California Supreme Court also ruled that the city could not sell the water. Essentially this left the San Fernando Valley with only one viable option to its survival and growth, annexation to the city. The vote for annexation in 1915, was overwhelming in a favor of joining the city of Los Angeles. This proved to be the beginning of growth and expansion for the Valley especially once the city secured the Owens River water and the building of the aqueduct, ensuring a greater supply of water. This leaves the San Fernando Valley in a bit of a quandary, if it wants to secede from the City of Los Angeles, since it is unable to use its own ground water and would not be able to continue to receive or buy water from the City of Los Angeles. The San Fernando Valley is water locked to the City of Los Angeles.