19 Forest Service, 4 Park Service, 4 Corps of Engineers and 1 BLM; 23 can be booked ahead
What South Dakota asks of a build
Altitude is not the story here. Towns run from about 1,400 feet at Chamberlain to 5,300 at Custer, and the state high point is 7,242 feet with no road on it. Tell a builder about three other things instead. Height and width, because the best roads in the Black Hills go through tunnels as small as 8 feet 0 inches wide by 9 feet 9 inches high. Cold, because winter closes roads by statute here. And distance, because west river the gaps between services are long and the wind never stops.
A builder plans and installs the whole system rather than one part of it: suspension matched to the finished weight, protection where the vehicle actually touches the ground, electrical power sized to what you run, and storage, water, sleeping and recovery points that work together. The good ones start with how you travel and work backward to parts.
The work that matters most is the work you cannot see. Wiring that is fused, labeled and documented. Fasteners that stay tight on washboard. A finished weight that stays inside what the vehicle is rated to carry.
Most full builds cover
01Suspension and tires chosen for the loaded weight
02Bumpers, sliders, skid plates and rated recovery points
03House battery, charging, solar and lighting
04Storage, drawers, fridge and water
05Sleeping: a roof tent, a camper or an interior platform
06Mounts for communications and navigation
How to choose a builder
Any shop can show you a finished truck in good light. These questions tell you how it was built.
01Ask to see finished builds on your platform, and talk to an owner who has put miles on one if you can.
02Ask what the vehicle will weigh when it is done and how that compares to its gross vehicle weight rating. A builder who cannot answer has not done the math.
03Ask who does the electrical work and whether you get a wiring diagram at handover.
04Ask what is done in house and what is sent out.
05Get the scope, the parts list, the price and the payment schedule in writing before work starts, and ask how changes are handled.
06Ask what warranty covers their labor, separate from the manufacturers' warranties on parts.
What to have ready before you ask for a quote
A builder can only quote what you can describe. The form on this page asks for exactly these things, which is why a quote that comes back from it is worth something.
01Year, model, engine and drivetrain, and for vans the wheelbase and roof height
02What has already been done to it
03How you travel: weekends or months, how many people, which climates, how far from pavement
04What you need to carry: water, fuel, bikes, boats, tools
05A budget range and a date you would like it back
Questions people ask
How much does an overland build cost?
It depends on scope more than on the vehicle. Suspension, tires and a roof tent is a different project from a full electrical system with cabinetry and armor, and labor is usually the largest part of a full build. The only number worth planning around is a written quote against a defined scope, which is what the form on this page is for.
How long does a build take?
Bolt-on work can be days. Full builds take longer, and at busy shops the wait for a start date can be longer than the work itself. Ask every shop for both numbers: when they can start and how long they need the vehicle.
Should I build in stages or all at once?
Stages work if the order is right. Decide the finished load first, because springs chosen for an empty truck will be wrong for a full one. Run electrical before interiors go in, because pulling cabinets to add a wire is paying for the same work twice.
Will modifications affect my warranty or insurance?
They can. Ask the builder which work they have seen raise warranty questions on your platform, read your warranty terms, and tell your insurer what has been added so the build is covered for its real value.
How high is South Dakota?
From Chamberlain at 1,407 feet to Black Elk Peak at 7,242.
Altitude decides what your engine, your brakes and your lungs have to work with, and how late in the year the passes open.
02,0004,0006,0008,000
Feet above sea level
Towns
CusterSupervisor’s office for the Black Hills National Forest, on US 385 with Custer State Park immediately east.5,313 ft
LeadThe highest town on this list, in the northern Hills directly below Terry Peak.5,209 ft
Hill CityOn US 385 in the central Hills, between the two loops of the Peter Norbeck Scenic Byway.4,985 ft
DeadwoodNorthern Black Hills town a few miles down the gulch from Lead, and a base for the forest roads under Custer Peak.4,536 ft
KeystoneAt the foot of Mount Rushmore, where Iron Mountain Road climbs south toward Custer State Park.4,336 ft
SpearfishNorth end of the Spearfish Canyon Scenic Byway, at the I-90 corner of the Black Hills.3,642 ft
Hot SpringsSouth end of the Hills on US 385. Fall River Ranger District office for Buffalo Gap National Grassland, with Wind Cave just north.3,447 ft
SturgisOn I-90 at the northeast edge of the Hills. The BLM’s Fort Meade Back Country Byway runs just south, and Bear Butte stands northeast.3,427 ft
Rapid CityThe hub for everything west river. Interstate 90 meets US 16 and SD 79 here, with the Black Hills west and the Badlands about an hour east.3,243 ft
Belle FourcheHome of the BLM South Dakota Field Office, which manages the state’s public land from here at the northern edge of the Black Hills.3,021 ft
BuffaloLast town of any size in the far northwest corner. The Forest Service works this country from a Sioux Ranger District office at Camp Crook, west of here.2,876 ft
WallI-90 Exit 110 at the north gate of Badlands National Park. Wall Ranger District office and the National Grasslands Visitor Center are on Main Street.2,827 ft
InteriorThe small town on the southeast side of the Badlands North Unit, and the lowest place on this list west of the Missouri.2,382 ft
PierreState capital on the Missouri River. Fort Pierre National Grassland starts about 24 miles south on US 83, and Oahe Dam is five miles north of Fort Pierre.1,479 ft
Sioux FallsLargest city in the state and the eastern gateway, where I-90 meets I-29.1,473 ft
ChamberlainWhere I-90 crosses the Missouri River, roughly the midpoint of a long day between Sioux Falls and Rapid City.1,407 ft
Passes, high roads and summits
Black Elk PeakThe highest point in South Dakota, inside the Black Elk Wilderness. No road to the top7,242 ft
Crooks TowerLimestone plateau country southwest of Lead, south of the head of Spearfish Canyon7,116 ft
Terry PeakThe landmark summit directly above Lead, in the northern Black Hills7,066 ft
Custer PeakNorth-central Black Hills, south of Deadwood6,808 ft
Spearfish Canyon, Cheyenne Crossing endSpearfish Canyon Scenic Byway: Spearfish and Cheyenne Crossing on US 14A5,300 ft
Bear ButteStanding alone on the prairie northeast of Sturgis, and a state park4,423 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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