National parks near Union, Kentucky
Union sits inside the Covington area and reaches the same parks. See national parks near Covington for the full write-up.
Mammoth Cave National Park is the closest national park to Union, Kentucky — 144 mi (231 km) in a straight line, which works out to roughly 3 hr 51 min behind the wheel.
Mammoth Cave, New River Gorge, Indiana Dunes, and Cuyahoga Valley are better with a night booked nearby.
Nothing near Union gates the entrance itself, but Shenandoah National Park puts a road, hike, or backcountry trip behind a permit or timed ticket.
Union has a population of about 5,795.
National parks near Union
| Park | Straight-line distance | Estimated drive | Realistic trip |
|---|---|---|---|
| Mammoth Cave National Park | 144 mi (231 km) | 3 hr 51 min | Best as a weekend |
| New River Gorge National Park | 204 mi (328 km) | 5 hr 16 min | Best as a weekend |
| Indiana Dunes National Park | 225 mi (363 km) | 5 hr 47 min | Best as a weekend |
| Cuyahoga Valley National Park | 229 mi (369 km) | 5 hr 52 min | Best as a weekend |
| Point Pelee National Park | 238 mi (383 km) | 6 hr 5 min | Worth a longer road trip |
| Great Smoky Mountains National Park | 239 mi (384 km) | 6 hr 6 min | Worth a longer road trip |
| Gateway Arch National Park | 297 mi (478 km) | 7 hr 29 min | Worth a longer road trip |
| Shenandoah National Park | 342 mi (551 km) | 8 hr 33 min | Worth a longer road trip |
| Congaree National Park | 418 mi (672 km) | 10 hr 20 min | Worth a longer road trip |
| Rouge National Park | 445 mi (716 km) | 10 hr 59 min | Worth a longer road trip |
What to book before you leave Union
| Park | What needs booking | Covers | How |
|---|---|---|---|
| Great Smoky Mountains | Great Smoky Mountains National Park Parking Tag | Parking, not an entrance fee | Timed reservation |
| Shenandoah | Old Rag Mountain Tickets | One road or area | Timed reservation |
Camping near Union
Within reach of Union, 53 campgrounds across 7 parks appear on Recreation.gov: 30 at Great Smoky Mountains, 5 at Mammoth Cave, 5 at New River Gorge, and 5 at Indiana Dunes, plus 3 more parks with fewer sites.
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
Mammoth Cave National Park is generally best March through May, then September through November, with February and December as the quieter shoulder either side.
Midsummer is hot, humid, and buggy; winter is mild and one of the better times to visit.
Biting insects and afternoon storms dominate summer. Repellent and a rain shell matter more than warm layers.
Seeing more than one
Several parks near Union 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 |
|---|---|---|
| Cuyahoga Valley → Point Pelee | 71.1 mi (114 km) | 2 hr 8 min |
| New River Gorge → Cuyahoga Valley | 220 mi (355 km) | 5 hr 40 min |
Planning a trip from Union
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 Boone County
Common questions
What is the closest national park to Union?
Mammoth Cave National Park. It is about 144 mi (231 km) from Union, roughly 3 hr 51 min of driving.
Can I do a national park day trip from Union?
Not comfortably. The nearest parks are far enough that you will want at least one night away.
How many national parks are near Union?
10 parks are within reach of Union, 0 of them close enough for a day trip.
Do you need a reservation for the national parks near Union?
None of them gate the entrance itself. 1 put a specific road, hike, or backcountry trip behind a permit or timed ticket — Old Rag Mountain Tickets at Shenandoah. These requirements are usually seasonal, so check the date you plan to arrive.
Where can you camp near Union?
Recreation.gov lists 53 campgrounds at the national parks within reach of Union. They are spread across 7 of those parks.
When is the best time to visit the parks near Union?
For Mammoth Cave National Park, the closest one, generally March through May, then September through November. Either side of that, February and December stays quieter.