Looking north from the Tijuana depot towards San Ysidro in the U.S.

The Section House at Tijuana.
Jan. 30, 1912.

Boarding train at Valle Redondo, with wye to the right. January 1912.

An MOW car makes is way around the Redondo Loop in 1912.

Looking into the United States through Tunnel #4, 598 ft. long.