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Niter Ice Cave – Grace Idaho

Just south of Grace, Idaho


Ice Cave,


About 1,200+ft of tunnel

Parking Lot Elevation

5516 ft

Time Required

Less than a half hour





Water Info

There is always a little bit (or a lot) of water inside the cave. Depends on the season and if there was recent rain or snow.

Best Season

Spring, summer and fall




Not allowed


Bring shoes you don't mind getting muddy, flashlight with extra batteries, jacket or sweater, camera

GPS Coordinates:

Niter Ice Cave: 42.532967°, -111.726460°

Driving Directions

The Trail:

The Niter Ice Cave is located just a few miles south of Grace Idaho. The entire cave was formed by lava hundreds of thousands of years ago and it is essentially a long flat winding lava tube.  The cave usually has ice forming from the water dripping down from the surface making short icicles and shallow puddles.  I would bring a flashlight of course, and a jacket or sweater while you are inside because it is quite cool.  Also bring some shoes you don’t mind getting a little muddy because there is always water in some shape or from in the cave.

The cave is located about a hundred yards from the main road and there is a sign that welcomes you to this unique creation.  There is also an info kiosk near the entrance to the cave too which explains how the cave was formed and that some of the early settlers used the cave as a refrigerator for their milk and butter.  The parking area is large enough to accommodate a few cars but please note that the surrounding area is private farm land so please be respectful outside and inside the cave!

Overall, I think we explored about 1,200+ft of tunnel.  It went on farther but we didn’t want to get more muddy.

Niter Ice Cave

The cave entrance is pretty big and there is a hand rail to help you down until you are at the bottom.  I have found that these steps are always wet or iced over so please use caution as you are going into the cave.  The descent down to the bottom is probably only about 20 feet in total elevation loss so it isn’t bad at all.  You may need to duck your head at the entrance but after that the cave varies in height from about 15ft to 25+ft.

Please use caution when entering caves! Please don’t spray paint or vandalize this unique geological creation!

Niter Ice Cave

Here you can see the hand rail and the slippery foot path going down.

Niter Ice Cave

From now on out you will be seeing a lot of vandalism and graffiti all over the cave.   It is very sad to see that most of this cave is littered and painted over with obscene and vulgar phrases.  If you have younger kids with you, you may have to answer a lot of their questions about the meanings of certain words scattered all over the place.  I won’t post any of the pictures I took of the graffiti but I will post a few pictures of the “graffiti” from people who wrote their names on the walls nearly a hundred years ago!

Niter Ice Cave

The cave is really wide in many places.

Niter Ice Cave

Ice forming

Ice forming

icicles forming on the walls near the entrance

icicles forming on the walls near the entrance

The cave kept going back in the darkness as it slowly curved right then left then again to the right.  We found a few locations where there have been minor roof collapses but overall the cave is still very much intact!

Niter Ice Cave Niter Ice Cave Niter Ice Cave Niter Ice Cave

Eventually we hit the back of the cave and we wanted to turn around since the cave roof sloped downward and we didn’t want to crawl around in the mud.  It kept going for sure but we didn’t want to get our jeans and nice shirts muddy.  On the way back, among the recent graffiti, we noticed that there were some very old names written on the walls.  The oldest we found was over a hundred years ago!

Niter Ice Cave Niter Ice Cave

The Return:

Head back outside

Personal Thoughts:

I have explored this cave many times when I was younger and it was fun to come back and see it now – and with much brighter flashlights too!  This is a fun short stop along the road and I would recommend you stop here if you have a little extra time.

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Difficulty is basically the length, duration and stress of the Trek. If the Trek is really long then it will receive a higher rating. If the Trek is short then it won't receive that high of a rating. However, difficulty rating also includes how tired we were at the end of the Trek.

Technicality is how strenuous the Trek is. If there is lots of bouldering or if there is bushwhacking involved then the rating will be higher. Technicality also includes if there are steep inclines or the need for ropes and other equipment.

Enjoyment is strictly how much fun we had doing the Trek. Regardless of how tired and exhausted we were, if we had a ton of fun doing the Trek then it will receive a higher rating.

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About The Author
Jeff Johnson
Questions or comments? I'd love to hear from you! JeffTJohnson@ymail.com

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