Massacre Rocks State Park
00 review3592 Park Ln, American Falls, Idaho, 83211-5556, United States
Massacre Rocks State Park
$25.00 - $36.00 / night
Campsite Fees
Standard Site Fee$0.00
Hookup Site Fee$30.00
Premium Site Fee$0.00
Hike and Bike Site Fee$0.00
Group Site Fee$0.00
Food Storage Locker Fee$0.00
Fees for campsites range from $25 to $36 per night, depending on amenities and season. There is also a $7 Motor Vehicle Entrance Fee (MVEF) per vehicle entering Idaho State Parks. Day users may need to park outside the campground, and reservation fees may apply.
About this campground
Where pioneers once crossed treacherous terrain on the Oregon Trail, Massacre Rocks State Park now welcomes modern adventurers seeking connection with America's frontier heritage. This captivating high desert oasis offers something for every traveler: traditional tent camping for those who love sleeping under the stars, cozy cabins equipped with modern amenities for comfort seekers, and full-service RV sites with water and electrical hookups. Campers discover an unexpected sanctuary of privacy among the park's dramatic rock formations, while breathtaking vistas of the winding Snake River create the perfect backdrop for unforgettable memories.
Massacre Rocks State Park accommodates a range of campers with tent, RV, and cabin options. Group camping is also available.
Historical SignificanceStep back in time at this pivotal Oregon Trail landmark, where the echoes of wagon wheels still seem to whisper across the desert wind. Register Rock stands as a limestone journal, bearing the carved names of pioneers who passed this way over 150 years ago, their hopes and dreams etched forever in stone. Well-preserved wagon ruts cut deep grooves in the earth, testament to the thousands of families who journeyed west seeking new beginnings. Throughout the park, thoughtfully designed interpretive displays and historical trails invite visitors to explore the complex narrative of westward expansion, including the profound impacts on Native American communities who called this land home for millennia before the first wagon arrived.
Weather and SeasonsExperience the dramatic beauty of high desert seasons at Massacre Rocks, where summer days bask in golden sunshine while refreshing breezes sweep across the sagebrush plains, offering natural relief from the warmth. As autumn arrives, the landscape transforms with cooler temperatures perfect for hiking and exploration. Winter brings a serene quietude to the park, occasionally dusting the ancient rocks with snow and creating a stark, beautiful contrast against the desert terrain. Spring awakens the desert with wildflowers and ideal temperatures, making it, along with summer, the perfect season for outdoor adventures and stargazing under crystal-clear skies.
ElevationPerched in Idaho's captivating high desert country, the campground's elevation creates a unique environment where expansive views stretch for miles across the Snake River Plain. This elevated position not only provides stunning panoramic vistas that photographers dream about, but also supports a fascinating ecosystem of hardy desert plants and wildlife perfectly adapted to thrive in this dramatic landscape. The elevation ensures cooler evenings even during summer months, making for comfortable camping conditions and spectacular stargazing opportunities.
Natural Features and SceneryThe landscape at Massacre Rocks reads like pages from an ancient geological storybook, where towering rock formations rise from seas of silver-green sagebrush and gnarled juniper trees dot the horizon. The mighty Snake River carves its way through this high desert canvas, creating ribbons of blue that contrast beautifully with the earthen tones of the surrounding terrain. Wildlife enthusiasts delight in spotting American white pelicans gliding gracefully above the water, while careful observers might glimpse sunbathing snakes and colorful geckos among the rocks. As day turns to dusk, the setting sun paints the rock formations in shades of gold and crimson, creating a natural amphitheater of color that reminds visitors why this rugged landscape has captivated travelers for generations.
Geological RegionMassacre Rocks sits within the remarkable Snake River Plain, a vast volcanic province that tells a 15-million-year story written in basalt and rhyolite. This high desert wonderland showcases nature's sculptural artistry through its distinctive rock formations, carved by ancient floods and polished by centuries of wind. The characteristic sagebrush steppe ecosystem flourishes here, punctuated by resilient juniper trees that have adapted to thrive in this challenging environment. These geological treasures serve as more than scenic backdrops—they're tangible connections to the Oregon Trail era, when these same distinctive landmarks guided countless pioneers through the challenging terrain toward their dreams of a new life in the West.
Campsite details
AccessibilityADA-accessible cabins and group facilities available; no proof of disability required.
Sites SizeSites are spacious and can accommodate RVs with pull-through options.
Sites PrivacyCampsites are well-spaced and surrounded by juniper trees for privacy.
Total Campsites4 campsites
Recommended CampsitesReviews mention site 37 being tight with trees and lower loop sites offering better views and quieter conditions. Cabins are highly rated for comfort and amenities.
Best CampsitesLower loop campsites are favored for minimized freeway noise and proximity to the Snake River.
Reserving a campsite
Check-in
No precise data provided.
Check-out
No precise data provided.
Stay Limit
- Camping limited to designated areas only. RVs are disallowed in facilities like cabins or yurts
- other stay limits unspecified.
Guests Allowed Per Site
- General review mentions some cabins accommodating 5-6 people
- other guest limit specifics are unclear.
Groups
- Group sites accommodate multiple vehicles and larger groups
- specific limits are unspecified.
Tents
Tents are allowed
RV vehicles
RV vehicles are allowed
Primitive
Primitive are not allowed
Reservable
Reservations are allowed
Site layoutThe campground consists of upper and lower loops, with cabins and RV sites spaced apart for privacy.
Open and Closed SeasonYear-round camping available. Winter months feature reduced staffing and limited hours at the visitor center.
Reservation PlatformsReservations can be booked online or by contacting the park directly. Phone numbers provided include 2085482672.
Walk-in AvailabilitySome reviews note walk-up availability; however, it is recommended to reserve online or call during winter months for cabins.
Cancellation PolicyNo clear data on cancellation rules; winter reviews recommend contacting the ranger station ahead of arrival due to limited staffing.
Accomodation available
GroupGroup campsites are offered for larger parties such as families, schools, or organizations. These sites provide space and facilities to accommodate multiple people camping together.
Cabin lodgingCabin lodging is available for campers seeking a more sheltered and comfortable experience. These enclosed accommodations offer protection from the elements and are ideal for those who prefer not to camp in tents.
Amenities available
Showers
Potable water
Fire rings
Picnic tables
Dump station
Firewood available
Lodging and accommodations
Flush toilets
Electricity hookups
Water hookups
Camp Store
Activities you can enjoy
Massacre Rocks State Park offers a variety of recreational activities, including hiking, fishing, kayaking, disc golf, and wildlife viewing. The park's historical significance adds an educational element, with Oregon Trail wagon ruts and a visitor center showcasing local history.
Hiking
Several hiking trails of varying difficulty are available, including the Wagon Rut Trail and trails along the Snake River. Trails feature unique rock formations and historical landmarks.Climbing
Climbing opportunities may be available in nearby natural areas such as rocky outcrops, boulders, or cliff faces. Visitors should bring appropriate gear and check local regulations or park guidelines before attempting any climbs.Fishing
Fishing is available along the Snake River, which is known for bass. Some areas are more accessible than others.Biking
Opportunities for biking along access roads and trails.Boating
The park includes a boat launch ramp and opportunities for kayaking and canoeing. Rentals are available for non-motorized boats.Wildlife viewing
The park is home to diverse wildlife, including birds and small mammals. Some visitors report seeing pelicans and snakes.Cultural and Educational Programs
The visitor center hosts historical and nature-based programs, including displays related to the Oregon Trail.Winter Activities
Limited activities such as cabin stays and hiking during the off-season.Water Sports
Kayaking and canoeing are popular activities on the Snake River.Campground rules
- Pets are allowed
- Campfires allowed only in designated fire rings. Collection and burning of downed limbs are permitted within these rings.
- Quiet hours are 10:00 PM - 7:00 AM
Hazards
General hazardsRattlesnake sightings are common in warmer months. Other risks include ticks, high temperatures, and uneven terrain. Visitors are recommended to wear appropriate footwear and remain cautious.
Active alertsLimited staffing and operational hours in winter. Some paths and trails may be gated or blocked during holidays.
Weather forecast
77
°F
Aug 25
Monday
Mainly clear
Precipitation: 0%
Strong wind, exercise caution
Humidity: 41%
Comfortable humidity levels
Wind: 10.3 mph
Strong wind, exercise caution
Mainly clear
7-Day Forecast
Access to 7-day forecasts tailored to each campground—covering temperature, precipitation, wind, and sky conditions.
Daily & Hourly Insights
View hourly forecasts with expected weather patterns throughout the day.
Temperature Trends
Visualize how temperatures shift over the month to help pick the most comfortable days for your trip.
Precipitation Trends
Plan around rain or snow with monthly visualizations of expected precipitation patterns.
Weather Summaries
Assess conditions with visuals for easier decision-making on when and where to camp.
Weather data powered by Open-Meteo
Emergency Services
Closest hospital: Power County Hospital in American Falls (approximately 15 minutes drive). Police and ranger station contact information not provided.
Good to know
Peak season datesSpring and summer (March-September) are preferred for optimal weather and seasonal activities.
Trash and recyclingTrash collection available; recycling facilities unspecified.
Proximity to water featuresLocated adjacent to the Snake River with access points for fishing, kayaking, and boating. Some campsites and cabins offer river views.
Common complaintsFreeway noise affecting upper loop campsites, occasional issues with flies near campfires, inconsistent shower functionality, and seasonal closures of certain facilities.
HostSeveral reviews praise the campground hosts for being friendly, helpful, and maintaining the facility's cleanliness.
Campground Map
3592 Park Ln, American Falls, Idaho, 83211-5556, United States
Driving directionsMassacre Rocks State Park is located off of I-86 at exit #28, 10 miles west of the city of American Falls, Idaho.
Road access is paved and easily accessible, located just off Interstate 86. While nearby reviews mention it's close to the freeway, increasing convenience, some users noted noise from this proximity.Nearby places
American Falls (10 miles, approximately 15 minutes), Pocatello (27 miles, approximately 30 minutes), Twin Falls (98 miles, approximately 1.5 hours).
Nearby supplies
Groceries, fuel, and other essentials can be purchased in American Falls, 10 miles away. The visitor center sells ice, wood, and some items for camping at reasonable prices.
Camper Reviews
0.0
0 reviews
Massacre Rocks State Park has limited reviews, placing it in the bottom % of campgrounds based on reviews
User reviews highlight the park's scenic beauty, historical significance, and recreational opportunities. Many appreciate the clean facilities, well-maintained campsites, and friendly staff. However, there are complaints about proximity to the freeway, maintenance issues, and occasional high winds.
Review Summaries
What Campers Love
Scenic views, historical landmarks, clean facilities, variety of recreational activities.
Common Concerns
Proximity to freeway noise, maintenance issues with showers, high winds, and occasional snake sightings.
Pro Tips & Recommendations
Reserve sites in the lower loop for less freeway noise. Bring essentials when staying in cabins. Summer months can be hot, so plan accordingly.
Seasonal Insights
Summer: Hot weather, high activity. Winter: Quiet, limited staffing.
Camper Quotes
"The views of the Snake River were incredible." "The bathrooms are clean, but showers need fixing." "Loved the disc golf course and historical displays."
Site-Specific Reviews
Users recommend the lower loop for less highway noise. Site 32 noted as tight; lower loop sites offer better views.
Accessibility Features
ADA-accessible cabins and facilities praised. No additional details provided.
Pet-Friendly Features
Pets allowed but must be leashed. Some reviews mention the presence of snakes, which could be a concern for pet owners.
Last updated August 10, 2025