1871 in terms purports to bestow the same rights, grants and privileges as were granted to the Southern Pacific Railroad Company by the act of 1866. That merely defines the extent of the grant and the character of the rights and privileges; it does not operate to make the latter grant take effect by relation as of the date of the prior grant, and thus subject the grants to the two companies to the rule controlling cotemporaneous grants, as established by St. Paul & Sioux City Railroad v. Winona & St. Peter Railroad, 112 U.S. 720, and Sioux City & St. Paul Railroad v. Chicago, Milwaukee &c. Railway, 117 U.S. 406. Even if Congress had in terms expressed an intent to that effect in a subsequent act, itcontention is based upon these facts: The Atlantic and Pacific Company claimed that, under its charter, it was authorized to build a road from the Colorado River to the Pacific Ocean, and thence along the coast up to San Francisco; and it filed maps thereof in four sections. San Buenaventura was the point where the westward line first touched the Pacific Ocean. One of these maps was of that portion of the line extending from the western boundary of Los Angeles County, a point east of San Buenaventura, and through that place to San Miguel Mission, in the direction of San Francisco. In other words, San Buenaventura was not the terminus of any line of definite location from the Colorado River westward, whether shown by one or more