National parks near Groton, South Dakota
Badlands National Park is the closest national park to Groton, South Dakota — 246 mi (396 km) in a straight line, which works out to roughly 6 hr 17 min behind the wheel.
Nothing near Groton gates the entrance itself, but 2 of the parks in range put a road, hike, or backcountry trip behind a permit or timed ticket.
Groton has a population of about 1,508.
National parks near Groton
| Park | Straight-line distance | Estimated drive | Realistic trip |
|---|---|---|---|
| Badlands National Park | 246 mi (396 km) | 6 hr 17 min | Worth a longer road trip |
| Theodore Roosevelt National Park | 277 mi (445 km) | 7 hr | Worth a longer road trip |
| Wind Cave National Park | 295 mi (475 km) | 7 hr 26 min | Worth a longer road trip |
| Voyageurs National Park | 324 mi (521 km) | 8 hr 7 min | Worth a longer road trip |
| Riding Mountain National Park | 385 mi (620 km) | 9 hr 34 min | Worth a longer road trip |
| Isle Royale National Park | 487 mi (784 km) | 11 hr 59 min | Worth a longer road trip |
| Grasslands National Park | 519 mi (836 km) | 12 hr 44 min | Worth a longer road trip |
| Rocky Mountain National Park | 521 mi (838 km) | 12 hr 47 min | Worth a longer road trip |
| Yellowstone National Park | 608 mi (978 km) | 14 hr 50 min | Worth a longer road trip |
| Pukaskwa National Park | 608 mi (979 km) | 14 hr 51 min | Worth a longer road trip |
What to book before you leave Groton
| Park | What needs booking | Covers | How |
|---|---|---|---|
| Rocky Mountain | Rocky Mountain National Park Timed Entry | Park entry | Timed reservation |
| Voyageurs | Voyageurs National Park Houseboat Permits | One hike or backcountry trip | Permit or lottery |
| Yellowstone | Yellowstone National Park Backcountry Permits | One hike or backcountry trip | Permit or lottery |
Camping near Groton
Within reach of Groton, 51 campgrounds across 7 parks appear on Recreation.gov: 33 at Isle Royale, 5 at Theodore Roosevelt, 5 at Rocky Mountain, and 5 at Yellowstone, plus 3 more parks with fewer sites.
Beaver Island at Isle Royale, Caribou Island at Isle Royale, Chippewa Harbor at Isle Royale, and Daisy Farm at Isle Royale do not take reservations, so they never show up as bookable inventory — in busy season that means arriving before mid-morning rather than planning around a confirmation.
Recreation.gov releases most national park campsites six months before the arrival date, at 10:00 a.m. Eastern time. Windows are set per campground, so confirm yours on the Seasons and Fees tab on that campground page.
Once a date is gone, cancellations are the real supply, and they get taken within minutes of appearing.
When to make this trip
Badlands National Park is generally best May through October, with April and early November as the quieter shoulder either side.
Winter brings cold, shorter days, and reduced services, though lower-elevation trails often stay walkable.
Peak summer weekends and autumn colour weekends fill parking lots early — arrive before mid-morning.
Seeing more than one
Several parks near Groton are close enough to each other to combine on one trip, so the drive from home only has to happen once.
| Pair | Apart | Estimated drive |
|---|---|---|
| Badlands → Wind Cave | 50.5 mi (81.3 km) | 1 hr 39 min |
| Badlands → Theodore Roosevelt | 227 mi (366 km) | 5 hr 50 min |
Planning a trip from Groton
Distances here are straight-line and the drive estimate adds a road factor on top, but mountain passes and seasonal closures can change it a lot — a route that looks like three hours in June can be shut entirely in February. Confirm road status with the park before you commit to a date.
Other towns in Brown County
Common questions
What is the closest national park to Groton?
Badlands National Park. It is about 246 mi (396 km) from Groton, roughly 6 hr 17 min of driving.
Can I do a national park day trip from Groton?
Not comfortably. The nearest parks are far enough that you will want at least one night away.
How many national parks are near Groton?
10 parks are within reach of Groton, 0 of them close enough for a day trip.
Do you need a reservation for the national parks near Groton?
None of them gate the entrance itself. 2 put a specific road, hike, or backcountry trip behind a permit or timed ticket — Voyageurs National Park Houseboat Permits and Yellowstone National Park Backcountry Permits. Farther than a day trip, Rocky Mountain National Park still needs a timed-entry permit to drive in. These requirements are usually seasonal, so check the date you plan to arrive.
Where can you camp near Groton?
Recreation.gov lists 51 campgrounds at the national parks within reach of Groton. They are spread across 7 of those parks. 33 of them are first-come, first-served, so they never appear as bookable inventory.
When is the best time to visit the parks near Groton?
For Badlands National Park, the closest one, generally May through October. Either side of that, April and early November stays quieter.