The Wayro route from Boerne to Piedras Negras is 165 miles (265 km), about 3 h 35 min of driving without stops. The U.S.–Mexico border is at about mile 162 on this route, near the Eagle Pass port of entry.
| Distance | 165 mi (265 km) |
|---|---|
| Driving time, no stops | 3 h 35 min |
| Main roads, in order | I-10 → US-90 → FM 481 → US-57 |
| Border crossing | about mile 162 of this route, Texas → Coahuila (near the Eagle Pass, TX port of entry) |
| Mexican states on the route | Coahuila (Level 3) |
| Fuel estimate (car at 25 mpg) | about 6.6 gal; actual use varies by vehicle and traffic |
| Stops listed below | 9 |
Crossing into Mexico: what you need for Piedras Negras
| Passport | Passport book or passport card to enter Mexico by land |
|---|---|
| FMM entry permit | Not needed if you stay within 12 miles (20 km) of the border for 6 days or less; required for longer stays or if you travel farther in |
| Temporary vehicle import permit (TIP) | Not needed inside the border zone; required if you drive farther into Mexico |
| Mexican auto insurance | Required for all vehicles: buy a Mexican policy before you cross |
Sources: U.S. State Department, Mexico travel information (updated August 11, 2026); permits are issued by Banjercito.
Crossing at Eagle Pass
Eagle Pass has two city-run bridges to Piedras Negras, Coahuila. Bridge I downtown serves pedestrians, cars and buses, while the Camino Real International Bridge adds commercial trucks, a SENTRI lane and direct access to Mexico's highway south toward Mexico City.
What the drive from Boerne to Piedras Negras is like
US-90 (45 mi) and FM 481 (44 mi) carry about 54% of the 165 miles. The U.S. part of the drive runs through Texas for about 162 miles; after the border at Eagle Pass you have about 3 miles left in Mexico. Of the 9 stops listed below, 5 are within a mile of the road.
The route from Boerne to Piedras Negras, road by road
| Road | Route miles (from–to) | Length, mi | State |
|---|---|---|---|
| local roads | 0–3 | 3 | Texas |
| I-10 | 3–16 | 13 | Texas |
| connecting roads | 16–17 | 1 | Texas |
| local roads | 17–60 | 43 | Texas |
| US-90 | 60–105 | 45 | Texas |
| FM 481 | 105–149 | 44 | Texas |
| US-57 | 149–162 | 13 | Texas |
| local roads | 162–165 | 3 | Coahuila |
- Mile 162 of this route: Texas → Coahuila (international border)
Stops between Boerne and Piedras Negras
- Right off the route (under 1 mile): Friedrich Wilderness Park (mile 12), Six Flags Fiesta Texas (mile 16), Landmark Inn State Historic Site (mile 45), Castroville Historic District (mile 45), Grand Opera House (mile 103)
- Nature and outdoors: Friedrich Wilderness Park (mile 12), O. P. Schnabel Park (mile 22), Government Canyon State Natural Area (mile 24)
- Museums and history: Mission Concepcion (mile 34), Mission San Juan Capistrano (mile 34), Landmark Inn State Historic Site (mile 45), Castroville Historic District (mile 45), Grand Opera House (mile 103)
- With kids: Six Flags Fiesta Texas (mile 16)
Friedrich Wilderness Park
On the Balcones Escarpment at San Antonio's northwest edge, this city park covers about 600 acres with nearly 10 miles of hiking trails. It protects nesting habitat for the endangered golden-cheeked warbler and black-capped vireo, so birders come here often.
Six Flags Fiesta Texas
This San Antonio theme park mixes thrill coasters and family rides, including the Werewolf Gorge launch coaster, and includes the Hurricane Harbor water park with a Texas-shaped wave pool.
O. P. Schnabel Park
O. P. Schnabel Park in Texas has YMCA facilities, ball fields, a basketball court and several trails.
Government Canyon State Natural Area
Protecting Edwards Aquifer recharge land north of San Antonio, this 13,000-acre natural area has more than 40 miles of trails and the only known dinosaur tracks on public land in Bexar County, left about 104 million years ago.
Mission Concepcion
Dedicated in 1755, the stone church here is one of the country's oldest remaining original stone churches and the least restored of San Antonio's colonial missions. Inside, four rooms still show colorful frescoes painted more than 250 years ago.
Mission San Juan Capistrano
Founded in 1716 in East Texas as Mission San José de los Nazonis, it was moved to the east bank of the San Antonio River in 1731 and renamed San Juan Capistrano. It's part of a UNESCO World Heritage Site.
Landmark Inn State Historic Site
Set on five acres along the Medina River in Castroville, the "Little Alsace of Texas," this historic inn offers overnight rooms plus tours and living history programs about the people who settled near the river ford.
Castroville Historic District
Founded in 1844 by Henri Castro with Alsatian settlers, Castroville preserves more than 50 homes and shops from the mid to late 1800s, many with thick limestone walls, shown on a self-guided city walking tour.
Grand Opera House
Uvalde's restored Victorian opera house, with arched windows, a copper roof, and a corner turret, still hosts live theater and music upstairs. A visitor center displays the original weathervane, historic photographs, and artifacts from Fort Inge.
When you get to Piedras Negras
Directly across the Rio Grande from Eagle Pass, Texas, Piedras Negras is a border city in northern Coahuila linked to Texas by three international bridges. It lays claim to a snack known worldwide: in 1943 chef Ignacio Anaya first served nachos at the Club Victoria here, and the city hosts a nacho festival every year.
- Gran Plaza: The Museo de la Frontera Norte, the Chapulín children's museum and the José Vasconcelos Auditorium all stand on this civic plaza. source
- Paseo del Río: A pedestrian corridor runs along the Rio Grande riverfront, with views across to Eagle Pass. source
- Macroplaza de los Fundadores: The founders' plaza has an acoustic shell and a clock tower, near historic buildings such as the old telegraph and post office. source
Martyrs of Christ the King Cathedral, Piedras Negras
The Martyrs of Christ the King Cathedral is the Catholic cathedral of Piedras Negras, a city in northeastern Coahuila on the border across from Eagle Pass, Texas.
More drives to Piedras Negras
- Laredo, TX to Piedras Negras
- Brenham, TX to Piedras Negras
- Austin, TX to Piedras Negras
- Waxahachie, TX to Piedras Negras
- Chickasha, OK to Piedras Negras
- Waco, TX to Piedras Negras
From Boerne to other places in Mexico
- Boerne, TX to Monterrey
- Boerne, TX to Ciudad Juárez
- Boerne, TX to Ciudad Victoria
- Boerne, TX to Nuevo Laredo
- Boerne, TX to Real de Catorce
- Boerne, TX to Ojinaga
All routes to Piedras Negras, border crossings and permits in one place: Driving to Piedras Negras, Mexico from the U.S.
Continue Your Adventure
Frequently asked questions
How long is the drive from Boerne to Piedras Negras?
About 3 h 35 min of driving without stops, over 165 miles.
How far is Piedras Negras from Boerne by car?
About 165 miles (265 km) on the Wayro route. Other map services may show a few miles more or less, depending on where they start and end in each city.
Where does the Boerne to Piedras Negras drive cross into Mexico?
At about mile 162 of this route, from Texas into Coahuila, near the Eagle Pass port of entry.
Do I need a permit to drive my car from Boerne to Piedras Negras?
Not needed inside the border zone; required if you drive farther into Mexico. You also need Mexican auto insurance and a passport book or card.
Is it safe to drive from Boerne to Piedras Negras?
The U.S. State Department rates Coahuila Level 3: Reconsider Travel (advisory issued May 29, 2026). Read the full advisory before you go.
What roads does the drive from Boerne to Piedras Negras use?
In order: I-10, US-90, FM 481 and US-57. The road-by-road table above shows the route miles and states for each one.
What are good stops between Boerne and Piedras Negras?
Closest to the road: Castroville Historic District (historic district, mile 45, 0.2 mi from the route); Landmark Inn State Historic Site (state historic site, mile 45, 0.3 mi from the route); Grand Opera House (opera house, mile 103, 0.1 mi from the route). All stops are described above.
How we put this guide together
Wayro calculates the route from OpenStreetMap road data; mile numbers are positions along this route, not highway mile markers, and "from the route" distances are straight-line, so the real detour depends on access roads. Stops are chosen from parks, natural sites, museums, historic sites and attractions close to the route (roughly 2 to 7 miles depending on the type, farther for World Heritage sites): at least one strong stop for each stretch of the drive, then the best-known places nearest the road, with no more than five of one type, up to nine in all. Places that are closed, private or not open to visitors are removed. Place and city descriptions are written by the Wayro team from official park, museum, tourism and government websites and other published sources. Safety levels and entry rules were checked against the U.S. Department of State on September 29, 2026. Conditions change, so check the linked sources before you travel.
Route data © OpenStreetMap contributors.