The Lobato (Costilla Crossing) Bridge is the southernmost bridge over the Rio Grande River in Colorado. It sits on County Road G between Antonito and Jaroso, Colorado and was originally constructed in 1892 by Joseph F. Thomas. He was a civil engineer and the Conejos County Surveyor and lived in Manassa, Co.. The bridge was purchased from the Wrought Iron Bridge Company of Canton, Ohio for the sum of $8,400. The bridge parts were shipped to Colorado by train and assembled on location.