Four-wheel drive is always required beyond mile 5. The seashore protects about 66 miles of coast
Buy for the few roads that matter
The list of Texas roads that need a serious vehicle is short and public: the River Road at 51 miles, Old Ore Road at 26, Black Gap Road at 8.5, the 70 unmaintained miles at Big Bend Ranch, the 7.3 miles to Williams Ranch and 60 miles of Padre Island beach. Ask a dealer which of those a vehicle has actually driven.
Then weigh the trade. A large expedition truck covers the paved 30-mile Ross Maxwell Drive and every Corps of Engineers lake in the state, and is the wrong tool for narrow ranch roads that need a short wheelbase.
Buying a finished vehicle trades money for time. Someone else has already made the thousand decisions, and you can be traveling this season. A dealer who knows these vehicles can also tell you what a used one has been through.
What they offer
01New expedition vehicles, campers and vans
02Used and consignment vehicles
03Trade-ins, financing and delivery
04A proper walk-through of every system
05Service after the sale, or a referral to it
How to buy a finished vehicle
The questions are the same whether it is new or used.
01Ask for weights: empty, loaded, and the gross rating. Overweight expedition vehicles are common.
02Ask for the build documentation: wiring diagrams, component manuals and service history.
03On a used vehicle, have the chassis and the house inspected independently before you buy.
04Ask who services what after the sale, and where.
05Drive it, on dirt if they will let you.
What to have ready before you ask
Know the trip before you choose the truck.
01How many people travel, and for how long
02Where you want to take it, and what you need to park it
03New, used, or either
04A budget range, and whether you have a trade
05When you want to be on the road
Questions people ask
Is it cheaper to buy a finished vehicle or build one?
A used, finished vehicle is often the least expensive way into a capable rig, because builds rarely return what was spent on them. A new custom build costs the most and fits you best. Building it yourself costs the least money and the most time.
What should I check on a used build?
Weight against rating, water damage and leaks, the age and type of the batteries, heater and appliance service history, and the condition of the frame and suspension. Then have a mechanic check the vehicle underneath the camper.
Can I finance an expedition vehicle?
Often, through RV or specialty lenders, depending on the vehicle and how it is titled. Dealers who sell these regularly know which lenders will.
How high is Texas?
From Port Aransas at 6 feet to Guadalupe Peak at 8,749.
Altitude decides what your engine, your brakes and your lungs have to work with, and how late in the year the passes open.
02,0004,0006,0008,00010,000
Feet above sea level
Towns
Fort DavisIn the Davis Mountains at the start and finish of the 75-mile loop drive Texas Parks and Wildlife describes through the range.4,896 ft
AlpineOn US 90 with the Amtrak and bus stops, 100 miles from Big Bend park headquarters. State Highway 118 runs south from here to Study Butte.4,477 ft
MarathonOn US 90 at the top of US 385, 70 miles north of Big Bend park headquarters. FM 2627 leaves here for Black Gap, 55 miles south.4,044 ft
Van HornOn I-10 where State Highway 54 runs north toward Guadalupe Mountains National Park. Last interstate services before that corner of the state.4,044 ft
El PasoFar west corner, where I-10 meets the border. Franklin Mountains State Park sits inside the city, and the Trans-Mountain Highway crosses it.3,713 ft
AmarilloWhere I-40 and I-27 meet in the Panhandle. Lake Meredith and its two off-road areas are north, Palo Duro and Caprock Canyons south and southeast.3,670 ft
CanyonAt the gate of Palo Duro Canyon State Park on Park Road 5, where the Civilian Conservation Corps road drops to the canyon floor.3,543 ft
Fort StocktonWhere I-10 meets US 285 and US 385. The nearest EV charging to Big Bend, 130 miles out, and one of three towns with major shopping near the park.2,973 ft
TerlinguaStudy Butte and Terlingua sit between Big Bend’s west entrance and the Barton Warnock Visitor Center at the east end of Big Bend Ranch. Fuel and diesel.2,890 ft
PresidioWest end of FM 170 and the Fort Leaton entrance to Big Bend Ranch. Fuel, and the only local extraction and mechanic service for the ranch.2,581 ft
QuitaqueAt Caprock Canyons State Park and the Trailway, 100 miles southeast of Amarillo in Briscoe County.2,577 ft
Del RioOn US 90 at Amistad National Recreation Area, and the nearest full-service town to the Devils River State Natural Area.965 ft
HuntsvilleOn I-45 at the Sam Houston National Forest, 50 miles north of Houston, beside the only OHV trail in the national forests of Texas.371 ft
LufkinHeadquarters of the National Forests and Grasslands in Texas, and the service town between the Angelina, Sabine and Davy Crockett forests.313 ft
Corpus ChristiThe mainland base for Padre Island National Seashore. Last full services before the causeway and the 60 miles of drivable beach.7 ft
Port AransasOn Mustang Island, where the city sells the beach parking permit for markers 0 to 62 and allows camping on the sand.6 ft
Passes, high roads and summits
Guadalupe PeakThe highest point in Texas, in Culberson County. No road reaches it8,749 ft
Mount LivermoreHigh point of the Davis Mountains, inside the 75-mile loop out of Fort Davis8,338 ft
El CapitanThe cliff at the south end of the Guadalupe escarpment, above the Williams Ranch road8,095 ft
Emory PeakThe high point of the Chisos Mountains, in Big Bend National Park7,818 ft
Panther PassThe saddle the Chisos Basin Road crosses on its 6 paved miles into the basin5,778 ft
Trans-Mountain Highway summitTrans-Mountain Highway, Franklin Mountains State Park5,120 ft
Pass, road and summit elevations are the figures published by the agency that manages them. Town elevations are the town’s or county’s own
figure where it publishes an exact one; the rest are from the U.S. Geological Survey (3D Elevation Program at the place’s official coordinates),
retrieved September 18, 2026. Every source is listed at the foot of the page.
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