-Established by Army in 1848 immediately following Mexican War, fort was in continuous use until May 1946. It was originally among series of border forts guarding against attacks and was base for border patrol. Laredo Community College now on grounds. The old guardhouse, chapel, warehouse, living quarters, infirmary, commander's house, and commissary remain in use as college department facilities and housing for faculty and students. The original earthen fort is now part of the Paso Del Indio Nature Trail. West End of Washington St. on banks of Rio Grande.