Natural Tunnel State Park, Duffield

4.7
#30 of 100 in Nature in Virginia
Natural Tunnel State Park is a Virginia state park, centered on the Natural Tunnel, a massive naturally formed cave that is so large it is used as a railroad tunnel. It is located in the Appalachian Mountains near Duffield in Scott County, Virginia.

The Natural tunnel, which is up to 200 feet (61 m) wide and 80 feet (24 m) high, began to form more than a million years ago when groundwater bearing carbonic acid percolated through crevices and slowly dissolved limestone and dolomite bedrock. A small river, which is now called Stock Creek, was diverted underground and it continued to erode the tunnel over many millennia.

The walls of the tunnel show evidence of prehistoric life. Many fossils have been found in the creek bed and in the tunnel walls.
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Natural Tunnel State Park Reviews

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TripAdvisor Traveler Rating
TripAdvisor Traveler Rating 4.5
176 reviews
Google
4.8
TripAdvisor
  • You have to see it to grasp what's here. Amazing place. 187 steps down to the tunnel, which isn't bad, but it's a hike back up. There are several benches to stop and rest on the way. There is a...  more »
  • Very beautiful park. The tunnel that was carved out by nature has a railroad track running through it.  more »
  • We recently stayed for a week at the Natural Tunnel in a cabin. The park is beautiful but the cost of the cabin stay is extremely over priced. There is no internet or TV in the cabins which we...  more »
Google
  • 5 stars aren't enough for this gem. Well kept and maintained sites, Beautiful surroundings, amazing history... Oh yea, and there's the Natural Tunnel too. Wow. What an amazing feature in this Earth. Thank you for making this a state park. You must check out the Block House and definitely take the Bolling Cave Tour; so far beyond my expectations for a cave in this area.
  • Seriously one of the wonders of the world. Ive been to Natural Tunnel a few times over the past 3 decades yet never ventured further than the main cave area and above canyon rim. Yesterday I hiked every trail offered in the park. All of the trails were well-kept and mostly easy to navigate, but always take a park map. There are black bears inside the park, I spotted one in the morning right at the base of the chairlift area crossing the railroad and creek. Highly recommend visiting NT. A full day of great outdoor fun.
  • The whole park in general is well kept and clean. We stayed at the campground and was very impressed. Everything was well kept and groomed. The facilities were all clean. The campsite we had was private and relaxing. It was the annual tunnel day where they allowed you to enter the tunnel which was an awesome experience. There were rangers everywhere helping people and operating activity booths. Oh yeah, the tunnel itself is pretty awesome too!
  • Nice little park. The tunnel is not lit so it was just a dark space, could not see down the tunnel. Park is small but it only costs $5 to enter. Gondola was fun but short. Spent about an hour here, which is all you need unless you hike some of the very short trails. It was a hundred degrees so we did not hike.
  • This place is awesome. A good little hike, unless you want to ride the chair lift to the bottom. I personally would like to be able to walk through the tunnel but so worth it.

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