California Code, Public Utilities Code - PUC § 30100

There is hereby created the Southern California Rapid Transit District, comprising that territory hereinafter described in this section lying within the boundaries of the County of Los Angeles and such territory in the County of Los Angeles and in other counties as may be hereafter annexed to the district as provided in this part. The territory within the County of Los Angeles which is hereby created into such district is described as follows:

All that portion of the County of Los Angeles, State of California, lying southerly of theline formed by the south lines of Sections 13, 14, 15, 16, 17, and 18 of Township 3 North, Range 15 West S.B.B. & M., the south lines of Sections 13, 14, 15, 16, 17, and 18 of Township 3 North, Range 16 West S.B.B. & M., the west line of Range 16 West S.B.B. & M., and the south lines of Sections 13 and 14 of Township 3 North, Range 17 West S.B.B. & M., and the westerly extension of such lines in the Rancho Simi to the westerly boundary of the County of Los Angeles, and westerly of the east line of Range 15 West S.B.B. & M., and all that portion of the remainder of said county lying southerly of the north line of Township 2 North S.B.B. & M., excepting therefrom the islands of Santa Catalina and San Clemente.