Castolon Historic District

Castolon Historic District is a cluster of adobe homes, army buildings and trading-post structures beside the Rio Grande on Ross Maxwell Scenic Drive. It tells the story of a border community where Mexican and U.S. cultures met, from irrigated farms to cavalry posts and the stores that served remote ranches. I’d make this a slow stop if the people-and-place history interests you; there isn’t one museum that covers it all.

Park and wander between the buildings and exhibits rather than looking for a single centerpiece. The site has parking for cars and buses or RVs, benches, interpretive exhibits and public flush toilets. The visitor center is in the historic Garlick House, with more exhibits in nearby Magdalena House, and it operates seasonally from November through April. A separate Castolon store is listed year-round for basic groceries, camping supplies and souvenirs; that’s the modern concession, not the old La Harmonia Store.

The district sits 22 miles from the north end of Ross Maxwell Scenic Drive and about eight miles from the Santa Elena Canyon trailhead. The site has a scenic/photo spot, though its exact location isn’t named. Try a wide frame of the buildings against the surrounding hills, then close in on the adobe and cotton-gin machinery.

In the early 1900s, families farmed the fertile Rio Grande banks downstream of Santa Elena Canyon, growing corn, beans, wheat, squash, tomatoes and melons. Cipriano Hernandez, the area’s first known resident, called the settlement Santa Helena and opened its first store in his home, later known as Alvino House. The store also served people from the Terlingua mining community.

After the 1916 raid at Glenn Springs, the Army established Camp Santa Helena here with troops from the 5th, 6th and 8th Cavalry. Permanent buildings were started in 1919 and finished in 1920, just as the Mexican Revolution was ending and troops were being reassigned. The timing makes the barracks’ long second life as a trading post more central to the visit than their brief military use.

La Harmonia Company moved its store into the former barracks in 1921. Partners Wayne Cartledge and Howard Perry chose the name hoping to encourage harmony in the region. The store supplied farming and ranching households in Castolon, La Coyota, El Ojito and Terlingua de Abajo with medicines, groceries, ranch supplies, shoes and clothes; it could even order wedding veils and lace. Those are the goods of the historic store, not a menu for today’s separate concession.

Cotton growing gave Castolon another chapter. A gin built here in 1923 used a Morse engine; it processed 146 bales in its first season and peaked at 251 in 1925. Pink bollworm arrived in 1927, and the last crop was processed in 1942. A 1978 flood swept most of the gin downstream, but its foundation and metal scraps remain near the Cottonwood Campground amphitheater, and a large piece of machinery at Castolon keeps the story tangible.

Alvino Ybarra lived in the Alvino House with his family from 1918 to 1957. He operated the engines for the cotton gin and irrigation pump, and the home also hosted community religious events. The adobe house was repaired by masons from Santa Elena in 1994 and later stabilized against floodwater.

Magdalena Silvas moved into her house in the 1950s as a widowed mother raising five children. She cooked for La Harmonia Company and washed and ironed clothes. Her former home now holds exhibits about daily life in Castolon around a century ago.

A fire crossed the Rio Grande from Mexico on May 22, 2019, damaging the historic store barracks and latrine. Crews saved other historic buildings and recovered pieces such as the store sign and post-office-box doors. Keep the burned La Harmonia building in its historic context; the store serving visitors today is a different business.