Local history
San Antonio Historical Markers: Where Spanish Colonial Texas Was Born
Five Spanish missions, a hand-dug canal, and 16 Canary Island families. These San Antonio historical markers show you where colonial Texas began.
Photo: Joshua J. Cotten / Unsplash. Mission Concepción, San Antonio, Texas.
Texas has more than 16,000 historical markers, and San Antonio holds some of the oldest stories on any of them. RoadHistorical is a Texas historical preservation platform that puts those markers on your phone. This guide covers the Alamo's lost gateway and the plaza where Texas got its first government. Then it heads south to two river missions. Every plaque you stop to read is a small act of preservation.
The Alamo's Lost Gateway and the Ditch That Fed It
Alamo Low Barracks and Main Gateway marks a spot you'd walk right past. Mission San Antonio de Valero started nearby in 1718 and moved here in 1724. By 1762, thick stone and adobe walls enclosed its plaza. The main gateway sat in the south wall, 11 feet by 14 feet.
In 1803, Spanish cavalry from San Carlos de Parras del Alamo moved into the old mission. The complex took their name. During the 1836 siege, couriers slipped out through this gate. On March 6, Mexican troops broke through it and retook the Alamo.
Some witnesses said Col. James Bowie died in the low barracks beside the gate. The city leveled both in 1871 and merged the two plazas into open space. You're standing on pavement where the south wall used to be.
Location: Alamo Plaza, San Antonio, TX
Acequia Madre de Valero shows you what kept the mission alive. Spanish settlers and the mission's Native residents started hand-digging this main irrigation ditch when San Antonio was founded in 1718. They lined it with dressed limestone. It pulled water from the San Antonio River through the mission's fields.
The ditch ran along what's now Broadway and Alamo Street, then fed back into the river. After 1877, it became part of the city's modern waterworks. Crews restored this section in 1968, the same year it became a Recorded Texas Historic Landmark.
Location: E. Nueva St., San Antonio, TX
Find it in RoadHistorical before your visit.
Main Plaza, Where Texas Got Its First Civil Government
The Canary Islanders tells you who built the town itself. On March 9, 1731, 56 weary travelers reached the Presidio of San Antonio. They'd spent over a year crossing sea and land from the Canary Islands. King Philip V had ordered them to Texas.
On July 2, they began laying out the villa of San Fernando de Bexar. The church went on the west side of the Plaza de las Islas, today's Main Plaza. The government house went on the east side. A week later, presidio captain Juan Antonio de Almazan read them the viceroy's decree. It named them and their descendants "Hijos Dalgos," persons of nobility.
These 16 families formed the first organized civil government in Texas. The plaque lists every family head. Look for Juan Leal Goraz, Juan Curbelo, and Vicente Alvarez Travieso.
Location: Main Plaza, San Antonio, TX
Bexar County under Nine Governments sits a short walk away and counts the flags. Bexar County's government is the oldest in Texas. It has answered to nine different regimes.
Spanish rule ran from 1718 until January 1811. The Casas revolt lasted five weeks before a counter-revolutionary junta threw it out. In 1812, the Republican Army of the North declared independence from Spain. Spain took the town back five months later.
Then came the Mexican empire, the Mexican republic, and the Republic of Texas. Statehood followed in 1845, then the Confederacy in 1861. U.S. rule returned in 1865. Picture one courthouse square changing hands that many times.
Location: Main Plaza area, San Antonio, TX
Find it in RoadHistorical before your visit.
Mission San Juan Capistrano and Its Harvests
Mission San Juan Capistrano got its start far from here. Franciscan missionaries founded it on the San Antonio River in March 1731. It began in East Texas in 1716 as Mission San Jose de los Nazonis. The friars moved it because they couldn't defend it there.
The early years were brutal. Apache raids, cholera, and smallpox hit the mission again and again. The friars had to keep persuading the Coahuiltecan-speaking residents to stay through harvest.
By 1762, San Juan had surplus corn, cotton, beans, chili peppers, watermelons, and cantaloupes. Its 203 residents lived in thatched huts. The chapel and convent were stone. Spain secularized the mission in 1794. When crews restored the buildings in 1967, they dug up artifacts from three centuries of occupancy.
Location: 9101 Graf Rd., San Antonio, TX
Find it in RoadHistorical before your visit.
Espada, the Mission That Built an Aqueduct
Mission San Francisco de la Espada is the farthest south of San Antonio's five missions. It moved here in 1731. Some trace its roots to Mission San Francisco de los Tejas, founded in East Texas in 1690. Its name may come from a chapel statue of St. Francis that once held a sword.
By 1745, Espada's residents raised grain and beans. The mission owned 1,150 cattle and 750 sheep. Walk to the southeast bastion. Its three-foot rock walls still have openings for cannons and muskets. The marker calls it the only mission fort left intact in San Antonio.
Location: Mission Espada, San Antonio, TX
Mission San Francisco de la Espada Dam, Ditch and Aqueduct explains how the place survived. Franciscan missionaries built a 270-foot dam across the San Antonio River. It curves "the wrong way." River lime still cemented its gravel, rock, and brush into a solid wall.
The aqueduct carries the Espada ditch over Piedras Creek. Builders worked on it from 1740 to 1745. Tradition says they mixed goat's milk into the mortar. In 1941, the San Antonio Conservation Society bought the property to save it. The federal government named it a Registered National Historic Landmark in 1965.
Location: 10040 Espada Rd, San Antonio, TX
Espada, San Juan, and the Alamo are three of the city's five Spanish missions. Within 13 years of 1718, all five lined the river. In 2015, UNESCO inscribed them together as a World Heritage Site. You can drive the whole chain in an afternoon.
Find it in RoadHistorical before your visit.
How RoadHistorical Finds These Markers
Discovery Mode notifies you as you drive past a marker, so you don't miss the one hiding on a side street near Main Plaza. The AI Tour Guide answers the questions a plaque can't, like who the Canary Islanders were before they sailed.
Offline mode keeps working when your signal drops out near the southern missions. Your marker list and stories stay on your phone for the whole drive.
Start Discovering Texas History Today
RoadHistorical is free to download on iPhone and Android. Download it here and turn on Discovery Mode before your next drive. Android users can download RoadHistorical from Google Play.
Keep exploring
