This suit was brought by the State of New Mexico against the State of Texas in 1913 to settle a controversy concerning the location of their common boundary in the valley of the Rio Grande about 15 miles (24 km) from the parallel of 32 degrees north latitude to the parallel of 31 degrees 47 minutes on the international boundary between the United States and Mexico.

Each State asserted that the true boundary line is the middle of the channel of the Rio Grande in 1850.

Texas had been issuing deeds for the area known as the Country Club Area, as this was the land in dispute, the case became known by the moniker the Country Club Dispute.

"The master concluded on all the evidence that the allegations in New Mexico's bill as to the location and course of the Rio Grande 'as it existed in the year 1850' were not sustained, and that the river did not then flow on the eastern side of the valley as claimed by New Mexico; that its location and course in 1850 was, in general, as alleged in the cross- bill of Texas.

"[1] The unanimous Court held that "the testimony of ancient witnesses called by New Mexico as to their recollection of the old river, is far from satisfactory, and does not, in view of the other evidence, sustain the burden resting on New Mexico".