Massacre Rocks State Park

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Massacre Rocks State Park Located on the mighty Snake River, Massacre Rocks State Park is rich in history and full of year-round recreation.

Massacre Rocks State Park has recreational opportunities for all ages; 42-unit campground, 8-miles of hiking and biking trails, 18-hole Disc Golf course, boating access to the Snake River, Historic Oregon Trail ruts & Register Rock, Visitor Center with resale items and much more. We are open year-round with the Upper Loop campground with two camper cabins available during the winter months.

Celebrating   the Idaho way! What’s your ultimate go-to campfire dessert? 🔥Tell us: Are you Team Campfire Cones, Team S'...
10/14/2026

Celebrating the Idaho way!
What’s your ultimate go-to campfire dessert? 🔥
Tell us: Are you Team Campfire Cones, Team S'mores, or Team Dutch Oven Cobbler? Let the debate begin below! 👇

10/12/2026
Happy World Teachers’ Day! 🌲🎒Today we celebrate everyone who teaches others about the natural world, not just those in t...
10/05/2026

Happy World Teachers’ Day! 🌲🎒
Today we celebrate everyone who teaches others about the natural world, not just those in traditional classrooms:
• Teachers who lead inspiring field trips into nature.
• Parents & Grandparents passing down skills like fishing, camping, and tracking wildlife.
• Park Rangers, Staff & Volunteers sharing Idaho’s rich history, geology, and ecology.
👇 Who taught you your favorite outdoor skill? Tag them below to say thank you!

10/02/2026

River's down about 5ft so far. Not the lowest I've seen, but getting there.

A little mid-air moment at Massacre Rocks.Barn Swallows may be small, but they’re anything but still! Watching these agi...
10/02/2026

A little mid-air moment at Massacre Rocks.

Barn Swallows may be small, but they’re anything but still! Watching these agile birds swoop, dart, and skim across the water is just one of the little wildlife moments that make exploring Idaho’s parks so special.

Photo credit to: Sarah Jackson

TOP PHOTO is Back for October! Submit your photos of Massacre Rocks for your chance at some swag and to be our cover pho...
10/02/2026

TOP PHOTO is Back for October! Submit your photos of Massacre Rocks for your chance at some swag and to be our cover photo for next month! Be sure the photo is taken of Massacre Rocks of Idaho to be eligible. Note: When photos are submitted in portrait orientation rather than landscape orientation, we use photo-editing software to extend the sides of the image so it fits the Facebook cover photo format.

We have our September TOP PHOTO winner for Massacre Rocks State Park! Congratulations to Diane Doebler Stamm on your bea...
10/01/2026

We have our September TOP PHOTO winner for Massacre Rocks State Park! Congratulations to Diane Doebler Stamm on your beautiful photo! Diane, please email [email protected] to claim your swag!

Address

3592 Park Lane
American Falls, ID
83211

Opening Hours

Monday 9am - 3pm
Tuesday 9am - 3pm
Wednesday 9am - 3pm
Thursday 9am - 3pm
Friday 9am - 3pm
Saturday 9am - 3pm

Telephone

(208) 548-2672

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