How to Travel from

Piedras Negras to San Marcos

by Train, Rideshare or Car

Mexico United States of America Piedras Negras San Marcos

How to Get from Piedras Negras to San Marcos

Car

8 h 54 min

from $45

Rideshare

8 h 54 min

from $10.90

Cheapest

Other

8 h 54 min

Rideshare

836 km.

from $10.90

What is the cheapest way to get from Piedras Negras to San Marcos?

The cheapest way to get from Piedras Negras to San Marcos is car at a price of $1., the journey takes 8 h 54 min.

Is there a direct Train from Piedras Negras to San Marcos?

Yes, there is a direct Train, departing from Piedras Negras and arriving in San Marcos. The trip takes approximately 8 h 54 min.

What is the distance from Piedras Negras to San Marcos?

The distance between Piedras Negras and San Marcos is 836 km.

How long does the trip from Piedras Negras to San Marcos?

The journey from Piedras Negras to San Marcos takes approximately 8 h 54 min.

Is there a direct Car from Piedras Negras to San Marcos?

Yes, there is a direct Car, departing from Piedras Negras and arriving in San Marcos. The trip takes approximately 8 h 54 min.

Is there a direct Rideshare from Piedras Negras to San Marcos?

Yes, there is a direct Rideshare, departing from Piedras Negras and arriving in San Marcos. The trip takes approximately 8 h 54 min.

Book in San Marcos

Wingate by Wyndham San Marcos

108 N I-35, San Marcos

Fine

8.7

Hilton Garden Inn San Marcos

2131 N Highway 35, San Marcos

Great

Courtyard San Marcos

625 Commercial Loop, San Marcos

Great

9.1

All accommodation options in San MarcosAll hotels

[{"selectedTransportType":"car","routePoints":[{"latitude":25.66667,"longitude":-102.9667,"title":"Piedras Negras"},{"latitude":29.88327,"longitude":-97.94139,"title":"San Marcos"}],"compositeRoutePoints":[],"transportTypes":{"car":{"title":"Car","color":"var(--color-transport-car)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_car\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_CAR\u0027\u003E\u003C\/i\u003E"},"taxi":{"title":"Taxi","color":"var(--color-transport-taxi)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_taxi\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_TAXI\u0027\u003E\u003C\/i\u003E"},"bus":{"title":"Bus","color":"var(--color-transport-bus)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_bus\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_BUS\u0027\u003E\u003C\/i\u003E"},"train":{"title":"Train","color":"var(--color-transport-train)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_train\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_TRAIN\u0027\u003E\u003C\/i\u003E"},"truck":{"title":"Truck","color":"var(--color-transport-truck)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_truck\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_TRUCK\u0027\u003E\u003C\/i\u003E"},"plane":{"title":"Plane","color":"var(--color-transport-plane)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_plane\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_PLANE\u0027\u003E\u003C\/i\u003E"},"ride_share":{"title":"Rideshare","color":"var(--color-transport-ride_share)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_ride_share\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_RIDE_SHARE\u0027\u003E\u003C\/i\u003E"},"people":{"title":"Person","color":"var(--color-transport-people)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_people\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_PEOPLE\u0027\u003E\u003C\/i\u003E"},"walk":{"title":"Walking","color":"var(--color-transport-walk)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_walk\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_WALK\u0027\u003E\u003C\/i\u003E"},"bike":{"title":"Bicycle","color":"var(--color-transport-bike)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_bike\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_BIKE\u0027\u003E\u003C\/i\u003E"},"transfer":{"title":"Transfer","color":"var(--color-transport-transfer)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_transfer\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_TRANSFER\u0027\u003E\u003C\/i\u003E"},"subway":{"title":"Subway","color":"var(--color-transport-subway)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_subway\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_SUBWAY\u0027\u003E\u003C\/i\u003E"},"composite":{"title":"Route","color":"var(--color-transport-composite)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_transfer\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_TRANSFER\u0027\u003E\u003C\/i\u003E"},"carsharing":{"title":"Carsharing","color":"var(--color-transport-carsharing)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_carsharing\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_CARSHARING\u0027\u003E\u003C\/i\u003E"},"suburban":{"title":"Electric Train","color":"var(--color-transport-suburban)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_suburban\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_SUBURBAN\u0027\u003E\u003C\/i\u003E"},"tram":{"title":"Tram","color":"var(--color-transport-tram)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_tram\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_TRAM\u0027\u003E\u003C\/i\u003E"},"trolleybus":{"title":"Trolleybus","color":"var(--color-transport-trolleybus)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_trolleybus\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_TROLLEYBUS\u0027\u003E\u003C\/i\u003E"},"cable_car":{"title":"Funicular","color":"var(--color-transport-cable_car)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_funicular\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_CABLE_CAR\u0027\u003E\u003C\/i\u003E"},"rail":{"title":"Rail","color":"var(--color-transport-rail)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_train\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_TRAIN\u0027\u003E\u003C\/i\u003E"},"ferry":{"title":"Ferry","color":"var(--color-transport-ferry)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_ferry\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_FERRY\u0027\u003E\u003C\/i\u003E"},"rent":{"title":"Rent auto","color":"var(--color-transport-rent)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_rent\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_RENT\u0027\u003E\u003C\/i\u003E"},"unknown":{"title":"Unknown","color":"var(--color-transport-unknown)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_transfer\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_TRANSFER\u0027\u003E\u003C\/i\u003E"}},"pointIcon":"\u003Ci class=\u0022icon iconmoon iconmoon-map_point\u0022 style=\u0022color:var(--color-primary)\u0022 aria-label=\u0027MAP_POINT\u0027\u003E\u003C\/i\u003E","routeId":54329702}, {"selectedTransportType":"train","routePoints":[{"latitude":25.66667,"longitude":-102.9667,"title":"Piedras Negras"},{"latitude":29.88327,"longitude":-97.94139,"title":"San Marcos"}],"compositeRoutePoints":[],"transportTypes":{"car":{"title":"Car","color":"var(--color-transport-car)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_car\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_CAR\u0027\u003E\u003C\/i\u003E"},"taxi":{"title":"Taxi","color":"var(--color-transport-taxi)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_taxi\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_TAXI\u0027\u003E\u003C\/i\u003E"},"bus":{"title":"Bus","color":"var(--color-transport-bus)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_bus\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_BUS\u0027\u003E\u003C\/i\u003E"},"train":{"title":"Train","color":"var(--color-transport-train)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_train\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_TRAIN\u0027\u003E\u003C\/i\u003E"},"truck":{"title":"Truck","color":"var(--color-transport-truck)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_truck\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_TRUCK\u0027\u003E\u003C\/i\u003E"},"plane":{"title":"Plane","color":"var(--color-transport-plane)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_plane\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_PLANE\u0027\u003E\u003C\/i\u003E"},"ride_share":{"title":"Rideshare","color":"var(--color-transport-ride_share)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_ride_share\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_RIDE_SHARE\u0027\u003E\u003C\/i\u003E"},"people":{"title":"Person","color":"var(--color-transport-people)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_people\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_PEOPLE\u0027\u003E\u003C\/i\u003E"},"walk":{"title":"Walking","color":"var(--color-transport-walk)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_walk\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_WALK\u0027\u003E\u003C\/i\u003E"},"bike":{"title":"Bicycle","color":"var(--color-transport-bike)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_bike\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_BIKE\u0027\u003E\u003C\/i\u003E"},"transfer":{"title":"Transfer","color":"var(--color-transport-transfer)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_transfer\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_TRANSFER\u0027\u003E\u003C\/i\u003E"},"subway":{"title":"Subway","color":"var(--color-transport-subway)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_subway\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_SUBWAY\u0027\u003E\u003C\/i\u003E"},"composite":{"title":"Route","color":"var(--color-transport-composite)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_transfer\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_TRANSFER\u0027\u003E\u003C\/i\u003E"},"carsharing":{"title":"Carsharing","color":"var(--color-transport-carsharing)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_carsharing\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_CARSHARING\u0027\u003E\u003C\/i\u003E"},"suburban":{"title":"Electric Train","color":"var(--color-transport-suburban)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_suburban\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_SUBURBAN\u0027\u003E\u003C\/i\u003E"},"tram":{"title":"Tram","color":"var(--color-transport-tram)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_tram\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_TRAM\u0027\u003E\u003C\/i\u003E"},"trolleybus":{"title":"Trolleybus","color":"var(--color-transport-trolleybus)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_trolleybus\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_TROLLEYBUS\u0027\u003E\u003C\/i\u003E"},"cable_car":{"title":"Funicular","color":"var(--color-transport-cable_car)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_funicular\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_CABLE_CAR\u0027\u003E\u003C\/i\u003E"},"rail":{"title":"Rail","color":"var(--color-transport-rail)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_train\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_TRAIN\u0027\u003E\u003C\/i\u003E"},"ferry":{"title":"Ferry","color":"var(--color-transport-ferry)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_ferry\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_FERRY\u0027\u003E\u003C\/i\u003E"},"rent":{"title":"Rent auto","color":"var(--color-transport-rent)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_rent\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_RENT\u0027\u003E\u003C\/i\u003E"},"unknown":{"title":"Unknown","color":"var(--color-transport-unknown)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_transfer\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_TRANSFER\u0027\u003E\u003C\/i\u003E"}},"pointIcon":"\u003Ci class=\u0022icon iconmoon iconmoon-map_point\u0022 style=\u0022color:var(--color-primary)\u0022 aria-label=\u0027MAP_POINT\u0027\u003E\u003C\/i\u003E","routeId":54329702}, {"selectedTransportType":"ride_share","routePoints":[{"latitude":25.66667,"longitude":-102.9667,"title":"Piedras Negras"},{"latitude":29.88327,"longitude":-97.94139,"title":"San Marcos"}],"compositeRoutePoints":[],"transportTypes":{"car":{"title":"Car","color":"var(--color-transport-car)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_car\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_CAR\u0027\u003E\u003C\/i\u003E"},"taxi":{"title":"Taxi","color":"var(--color-transport-taxi)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_taxi\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_TAXI\u0027\u003E\u003C\/i\u003E"},"bus":{"title":"Bus","color":"var(--color-transport-bus)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_bus\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_BUS\u0027\u003E\u003C\/i\u003E"},"train":{"title":"Train","color":"var(--color-transport-train)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_train\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_TRAIN\u0027\u003E\u003C\/i\u003E"},"truck":{"title":"Truck","color":"var(--color-transport-truck)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_truck\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_TRUCK\u0027\u003E\u003C\/i\u003E"},"plane":{"title":"Plane","color":"var(--color-transport-plane)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_plane\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_PLANE\u0027\u003E\u003C\/i\u003E"},"ride_share":{"title":"Rideshare","color":"var(--color-transport-ride_share)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_ride_share\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_RIDE_SHARE\u0027\u003E\u003C\/i\u003E"},"people":{"title":"Person","color":"var(--color-transport-people)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_people\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_PEOPLE\u0027\u003E\u003C\/i\u003E"},"walk":{"title":"Walking","color":"var(--color-transport-walk)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_walk\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_WALK\u0027\u003E\u003C\/i\u003E"},"bike":{"title":"Bicycle","color":"var(--color-transport-bike)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_bike\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_BIKE\u0027\u003E\u003C\/i\u003E"},"transfer":{"title":"Transfer","color":"var(--color-transport-transfer)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_transfer\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_TRANSFER\u0027\u003E\u003C\/i\u003E"},"subway":{"title":"Subway","color":"var(--color-transport-subway)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_subway\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_SUBWAY\u0027\u003E\u003C\/i\u003E"},"composite":{"title":"Route","color":"var(--color-transport-composite)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_transfer\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_TRANSFER\u0027\u003E\u003C\/i\u003E"},"carsharing":{"title":"Carsharing","color":"var(--color-transport-carsharing)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_carsharing\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_CARSHARING\u0027\u003E\u003C\/i\u003E"},"suburban":{"title":"Electric Train","color":"var(--color-transport-suburban)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_suburban\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_SUBURBAN\u0027\u003E\u003C\/i\u003E"},"tram":{"title":"Tram","color":"var(--color-transport-tram)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_tram\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_TRAM\u0027\u003E\u003C\/i\u003E"},"trolleybus":{"title":"Trolleybus","color":"var(--color-transport-trolleybus)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_trolleybus\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_TROLLEYBUS\u0027\u003E\u003C\/i\u003E"},"cable_car":{"title":"Funicular","color":"var(--color-transport-cable_car)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_funicular\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_CABLE_CAR\u0027\u003E\u003C\/i\u003E"},"rail":{"title":"Rail","color":"var(--color-transport-rail)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_train\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_TRAIN\u0027\u003E\u003C\/i\u003E"},"ferry":{"title":"Ferry","color":"var(--color-transport-ferry)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_ferry\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_FERRY\u0027\u003E\u003C\/i\u003E"},"rent":{"title":"Rent auto","color":"var(--color-transport-rent)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_rent\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_RENT\u0027\u003E\u003C\/i\u003E"},"unknown":{"title":"Unknown","color":"var(--color-transport-unknown)","icon":"\u003Ci class=\u0022icon iconmoon iconmoon-transport_transfer\u0022 style=\u0022color:var(--color-white)\u0022 aria-label=\u0027TRANSPORT_TRANSFER\u0027\u003E\u003C\/i\u003E"}},"pointIcon":"\u003Ci class=\u0022icon iconmoon iconmoon-map_point\u0022 style=\u0022color:var(--color-primary)\u0022 aria-label=\u0027MAP_POINT\u0027\u003E\u003C\/i\u003E","routeId":54329702}]

Two ways to Travel from Piedras Negras to San Marcos

Composite routes from Piedras Negras to San Marcos

Questions and Answers

What is the cheapest way to get from Piedras Negras to San Marcos?

Is there a direct Train from Piedras Negras to San Marcos?

What is the distance from Piedras Negras to San Marcos?

How long does the trip from Piedras Negras to San Marcos?

Is there a direct Car from Piedras Negras to San Marcos?

Is there a direct Rideshare from Piedras Negras to San Marcos?