National parks near Linn, Missouri
Gateway Arch National Park is the closest national park to Linn, Missouri — 90.7 mi (146 km) in a straight line, which works out to roughly 2 hr 36 min behind the wheel.
The stainless-steel arch on the St. Louis riverfront, plus a small museum and grounds. An urban national park.
Gateway Arch National Park makes a full day trip — leave early.
Linn has a population of about 1,429.
Gateway Arch National Park
Hot Springs National Park
Mammoth Cave National Park
Indiana Dunes National Park
Great Smoky Mountains National Park
Point Pelee National Park
Best time to visit Gateway Arch National Park. Getting to Gateway Arch National Park.
National parks near Linn
| Park | Straight-line distance | Estimated drive | Realistic trip |
|---|---|---|---|
| Gateway Arch National Park | 90.7 mi (146 km) | 2 hr 36 min | Doable as a day trip |
| Hot Springs National Park | 282 mi (454 km) | 7 hr 7 min | Worth a longer road trip |
| Mammoth Cave National Park | 326 mi (525 km) | 8 hr 10 min | Worth a longer road trip |
| Indiana Dunes National Park | 333 mi (536 km) | 8 hr 20 min | Worth a longer road trip |
| Great Smoky Mountains National Park | 499 mi (803 km) | 12 hr 15 min | Worth a longer road trip |
| Point Pelee National Park | 547 mi (881 km) | 13 hr 24 min | Worth a longer road trip |
| Cuyahoga Valley National Park | 578 mi (930 km) | 14 hr 8 min | Worth a longer road trip |
| New River Gorge National Park | 585 mi (941 km) | 14 hr 17 min | Worth a longer road trip |
| Badlands National Park | 662 mi (1066 km) | 16 hr 7 min | Worth a longer road trip |
| Isle Royale National Park | 685 mi (1102 km) | 16 hr 39 min | Worth a longer road trip |
What to book before you leave Linn
| Park | What needs booking | Covers | How |
|---|---|---|---|
| Great Smoky Mountains National Park | Great Smoky Mountains National Park Parking Tag | Parking, not an entrance fee | Timed reservation |
Camping near Linn
Within reach of Linn, 81 campgrounds across 8 parks appear on Recreation.gov: 33 at Isle Royale National Park, 30 at Great Smoky Mountains National Park, 5 at Mammoth Cave National Park, and 5 at Indiana Dunes National Park, plus 4 more parks with fewer sites.
Beaver Island at Isle Royale National Park, Caribou Island at Isle Royale National Park, Chippewa Harbor at Isle Royale National Park, and Daisy Farm at Isle Royale National Park 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
Gateway Arch 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.
Planning a trip from Linn
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.
Common questions
What is the closest national park to Linn?
Gateway Arch National Park. It is about 90.7 mi (146 km) from Linn, roughly 2 hr 36 min of driving.
Can I do a national park day trip from Linn?
Yes — Gateway Arch National Park is within about a three-hour drive.
How many national parks are near Linn?
10 parks are within reach of Linn, and 1 of them is close enough for a day trip.
Do you need a reservation for the national parks near Linn?
None of them gate the entrance itself. These requirements are usually seasonal, so check the date you plan to arrive.
Where can you camp near Linn?
Recreation.gov lists 81 campgrounds at the national parks within reach of Linn. They are spread across 8 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 Linn?
For Gateway Arch National Park, the closest one, generally May through October. Either side of that, April and early November stays quieter.