Massacre Rocks State Park

Nice overnight stop if you stay in the lower loop of the campground, so as to minimize the road noise. Ask for the senior discount.

I was totally surprised by how wonderful it was to camp at Massacre Rocks State Park. Campground is divided into two loops (upper & lower). The upper loop sites oftentimes have more of a 'view' but were not very shaded and are also a little nosier due to the interstate in the distance. The lower loop is closer to the river and generally offers a little more shade and is a little quieter, but there aren't many ""views"" and the sites seemed to be smaller.
Sites are gravel and fairly level (for the most part). Firewood is available for sale in the Visitor's Center (which also has a cute museum inside).
If you're looking for a campground where you can so swimming, this is NOT the campground for you. Currents in the Snake River are very dangerous and signs are posted in many places warning that swimming and cliff diving should not be attempted. Plenty of beautiful walks along the river though and you can even hike a little ways to see the original wagon train ruts from the Oregon Trail.

This was an excellent place for kids to explore. They had a great time chasing lizards, climbing on rocks, and following trails. It isn't the most tent-friendly campground, though. We were in site 25 and the only place our large tent would fit was in the gravel driveway. We were given the option of moving the picnic table to use that space, but it was a tent pad sunken inside a wooden frame and not large enough. Also, the picnic table would have only fit on the driveway. Ours was not the only site not well designed for tents. A few sites in either loop had a good spot for a big tent, but the sagebrush and sloping ground did not permit large tents in most sites. This campground was mostly occupied by trailers and RVs.

The bathrooms were clean and had soap. The lower loop bathroom has only cold water with faucets that are hard for kids to use. The upper loop has warm and cold water with easier faucets and big counters. The showers were closed due to COVID.

While they discourage swimming in the Snake River due to the current, there is a small dock that you can sit on to soak your feet on hot days (and boy was it hot here in July). We might come back in a few years in the fall, with a small tent, and would still prefer the lower loop for views and less road noise.

Good state park located on the Snake River. Several hiking trails to choose from and great views of the river. Negatives: too close to the interstate with considerable road noise. Also, showers are out of service due to COVID-19.

dusty. Spacious. Expensive. Dump station, water, electric. Sites 13 or 14 would have great river views.

Nicer than anticipated! Beautiful historic site overlooking the Snake River. There are two camping loops. Only the upper loop is open in winter, first come first served (walk up). All but one of 21 (upper) sites have hookups. The centrally located bathroom has one stall open with hot water. Not sure if the shower was closed due to COVID-19 or seasonal. Nice gravel sites but only a few sites accessible to big rigs. One other travel trailer in the campground. The only down side is road noise from the Interstate which is right next to the park. Trails, river access, geologic and historical interest (and two disk golf courses!). Big wind farm across the highway from the park.

- We stayed here Thanksgiving Day

Open year round
- Winter camping fees all upper sites: $25 + $5 entry fee if you do not have Idaho state parks pass
- Water at each campsite is off for the winter but potable water is available across from the payment kiosk via frost free hydrant
- Sites 13 (backin) & 14 (pull through) (upper loop) have nice river and sunset views (both could accommodate bigger rigs)
- Visitor center not open during our stay

This is a very well maintained park that sits right on the Snake River. Also, only 20 minutes to American Falls Reservoir. Great fishing and other water sports close by make this a great destination. Like many state parks this only had water and electric hookup. Dump station is convenient. Camp sites are mostly uneven, and in our case, a bit tricky to negotiate. Otherwise, it was a fun visit. Hope to do it again sometime in the future.

High desert camping and hiking on the Snake River. Water and electric at our site, a picnic table and a good overlook to the River. A short hike(s) down to the water and some nice fishing spots. Only issue is when the wind blows so does the dust.
30 min from good shopping and a couple of hrs to Craters of the Moon Nat. Monument, a cool geological site. Very interesting place.
Restrooms were clean, showers need some updating.

Booking online was very easy. Checked online first to see what was available, drove through and checked the spots available to make sure how and if we would fit. Site 23 was perfect for our 30’ Airstream and 25’ F250. We could stay attached, as we are only here 1 night. Lots of grasshoppers in August and the river didn’t seem inviting to play in. 50 amp and water, with a dump station nearby. We still give it 5 stars because it was quiet and you can’t hear the freeway. The camp host was excellent and informative. The visitor’s center was nice and provided good history about the massacre. We would definitely stay here again.

We needed to find a place just for one night as we were traveling from eastern Oregon to Montana. We did not have reservations and called the state park in the morning as we were out on the road. The woman told us that hardly any one was in campground and that we could either go online and reserve for the day of or just drive in and find a spot. Decided to take our chances and check out what was open when we arrived. Took site 031 in the lower loop, gorgeous view of the River! Had water and electric, pull through. Quiet except a little sound from the interstate.