The new boundary ran along the Sabine River from the Gulf of Mexico north to the 32nd parallel; thence north to the Red River, along it to the 100th meridian; north to the Arkansas River and along it to its source; thence to the 42nd parallel; and west on that line to the Pacific Ocean. | The new boundary ran along the Sabine River from the Gulf of Mexico north to the 32nd parallel; thence north to the Red River, along it to the 100th meridian; north to the Arkansas River and along it to its source; thence to the 42nd parallel; and west on that line to the Pacific Ocean. |