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Castle Trail is a 10.5 mile heavily trafficked loop trail located near Interior, South Dakota that features beautiful wild flowers and is rated as moderate. The trail offers a number of activity options and is best used from April until October.

Length 10.5 mi Elevation gain 314 ft Route type Loop
Hiking Nature trips Walking Bird watching Running Views Wild flowers Wildlife Over grown Rocky No dogs
Waypoints (0)
Weather
UV Index
Daylight
Reviews (441)
Photos (513)
Recordings (337)
Completed (890)
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James Gilmour
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WalkingGreat!

Some less interesting parts but the majority was stunning

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Nick Redner
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Rey Gonzalez
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Hiking
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Marcelle Wunderlich
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Hiking

Great trail, very windy, well marked, lots to see.

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Chloe Gearhart
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HikingGreat!No shade

This is a cool way to experience the Badlands. If you complete this you can at least say you hiked the whole park. Definitely bring plenty of water and sunscreen. A decent portion of the trail is pretty boring, mostly in the loop, but the trail head where the loop ends and you can turn either left or right to stay on Castle Trail (one way goes back, the other way heads to the other trail head with the bathrooms and so forth) has some really great views if you walk over and ascend some of the hills. We saw big horned sheep along the trail as well. The trail is very flat.

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Louie Mau
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Chloe Gearhart
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Rebecca Maltsev
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Hiking

Easy terrain with great views. Pack plenty of water because it’s hot with no shade!

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Bradly Bain
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HikingGreat!No shade
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Jonathan Haack
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Susan Parsons
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Hiking

Nice terrain; pretty much flat the whole way. No shade, but with a breeze it was really nice.

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Danielle Moeller
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HikingNo shade

Hot, dry and windy in the summer. Barely any shade. Bring water, a snack, wear sunscreen. Lots of sandy, rocky soil. Cool rocks all around. Very interesting landscape.

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Nate Duffus
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Hiking

Did part of the trail connecting with medicine loop and back out.

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Emily Beam
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Hiking

Quiet and flat with great views. We fortunately had a cloudy day, but doing this in the full sun would have been more difficult. Almost no shade.

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John Gesimondo
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Hiking

The first mile is the best for scenery. After that it’s not as interesting as the formations near the parking lots.

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Sean Lynch
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Hiking

Did the castle trail-medicine root loop. Trail is in good condition and well-marked.

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Annie Britton
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HikingNo shade

Hiked on a cool morning and looped around the medicine loop trail rather than going on the second out and back due to incoming weather. Awesome trail, very flat so can crank at a fast pace while still taking time to stop and enjoy the views. Saw lots of birds, chipmunks, and four bighorn sheep. Very exposed so would recommend bringing 1.5-2 liters of water if hiking on a hot day. If you don’t have time to do the whole trail I’d recommend doing an out and back on the south side of the loop. That area was more scenic then the north half (which was still beautiful!).

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Perry Steines
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Hiking

Awesome back country view of the Badlands. Take plenty of water, stop and take in the beauty.

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Hope Smith
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HikingGreat!No shade

Did this as a loop with the Medicine Root trail. Beautiful views and a different perspective on the badlands. Only wildlife we saw was a chipmunk. Lots of folks on the trails, in all directions.

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Kyle Baird
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HikingGreat!No shade
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Victoria Huggler
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HikingNo shade

Beautiful views. The Badlands is truly unique. Bring water and try to start early. There’s not a lot of shade so it can get a little warm in the afternoon.

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Matt Alexander
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Alex Fidler
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Hiking

We started at 8:30 from the trailhead and it was cool for the first 30-60 mins and started getting progressively warmer. Definitely some interesting views along the way and saw some wildlife. However, not sure if I would do this trail again or at least not the full length. There isn't a big view at the end that this trail leads towards and really is along the entire way. While this trail isn't super strenuous, the heat is a big factor. Make sure you are prepared and have plenty of water - we met a few people who underestimated how much water they'd need to complete this.

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Sam Romano
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Hiking

start early, like before 7 if you can. very hot as day burns on. but very unique and beautiful in its own right.

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Tim Burgess
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Sandra Wolfe
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