Mill Flat Campground

Star4.33
17 reviews
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Quick Facts

5,951 ft

Price

Free

Booking

First-Come

Sites

7 campsites

Season

June through October

Cell

Unknown

Pets

Check Policy

RV Friendly

Opens Minidoka Ranger District site

Official Website
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Mill Flat Campground
$0.00 - $0.00 / night
Campsite Fees
Mill Flat Campground operates as a non-fee area.
Standard Site Fee$0.00
Hookup Site Fee$0.00
Premium Site Fee$0.00
Hike and Bike Site Fee$0.00
Group Site Fee$0.00
Food Storage Locker Fee$0.00

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What Campers Say

4.33

Recommended

Based on 17 reviews

16 Google reviews

Most mentioned

quietpeaceful

"User reviews were mixed. Positive aspects included the peaceful, open setting and opportunities for stargazing and wildlife viewing. Negative mentions focused on poor restroom conditions, biting deer flies, and seclusion that may deter some visitors."

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Campground Map

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Mill Flat Campground

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Driving directionsFrom I-84, take exit 228 and go east on Yale Road 85 miles, then 16 miles east on Haigler Canyon Road
The campground is accessible via paved roads, but the exact road conditions closer to the site are not provided.
Nearby places
Burley (approximately 101 miles)
Nearby supplies
Closest supplies are likely in Burley, ID (101 miles away)
details on grocery, camping, fuel specifics not provided.

Best Time to Camp at Mill Flat Campground

Summer transforms Mill Flat into a sun-drenched haven, where warm days invite endless exploration and cool evenings are perfect for stargazing around the campfire. The dry conditions create ideal camping weather from June through early fall. As autumn approaches, crisp mornings hint at the transformation ahead, when winter blankets the Sawtooth region in snow and temperatures plunge below freezing. Smart campers plan their visits during the golden window of summer and early fall, when nature shows off her most hospitable side.

Best
Summer(Jun-Aug)
4.0 / 5

Open June–Oct; summer is sun-drenched, warm days and prime stargazing evenings.

Fall(Sep-Nov)
3.0 / 5

Open into October; fall likely pleasant though fewer details and colder nights noted.

Spring(Mar-May)
Not recommended

Campground opens in June; spring season not available.

Winter(Dec-Feb)
Not recommended

Site closed outside June–October; winter camping not supported here.

Planning Tips
  • Peak Season: June through October. Book 2-3 months ahead.
  • Operating Season: June through October
  • Current Alerts: No active alerts or warnings provided.

About Mill Flat Campground

Tucked away in the heart of Sawtooth National Forest, Mill Flat Campground offers an intimate escape with just seven thoughtfully spaced campsites. This hidden gem welcomes both RV enthusiasts and tent campers to its serene open canyon setting, where the absence of fees and crowds creates a refreshingly authentic outdoor experience. From June through October, adventurers can claim their spot on a first-come, first-served basis, making spontaneous getaways delightfully simple.
The campground offers basic accommodations including tent and trailer camping. The lack of potable water and other modern conveniences indicates a more primitive camping experience.
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Stay Limit
Camping limited to 14 consecutive days within a 28-day period.


Activities you can enjoy

The campground offers a range of outdoor activities suited for nature enthusiasts. Visitors can enjoy trout fishing in the stream, stargazing at night, and exploring the canyon on extensive trail systems. Activities include mountain biking, OHV camping and trail riding, hiking, backpacking, picnicking, and hunting.
HikingExtensive trails through mountain canyons provide opportunities for day hikes and backpacking. Users noted the scenic beauty of the area.
FishingFishing for trout is permitted in the stream near the campground. Specifics about fish variety or regulations are not provided.
BikingMountain biking trails are available. No additional details on trail difficulty or length are provided.
Wildlife viewingSome campers mentioned observing wildlife such as owls and bats. Nighttime stargazing is also a highlight due to the open and secluded setting.
Winter Activities
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Policies & Safety

Hazards & AlertsUser reviews mention issues with flies, biting deer flies, and spiders. There are no official mentions of wildlife like bears, but campers should prepare for typical forest fauna.
Active AlertsNo active alerts or warnings provided.
No Potable WaterThis campground does not have potable water on-site. Bring all the water you need for drinking, cooking, and cleaning.

Weather at Mill Flat Campground

Reviews

4.3
17 reviews
Recommended
Recommended
Mill Flat Campground is recommended, placing it in the top 40% of campgrounds based on reviews
User reviews were mixed. Positive aspects included the peaceful, open setting and opportunities for stargazing and wildlife viewing. Negative mentions focused on poor restroom conditions, biting deer flies, and seclusion that may deter some visitors.
Review Summaries
Based on 17 reviews

What Campers Love

Campers highlighted the campground's peaceful and open setting. Activities like stargazing and wildlife watching were commonly praised. One reviewer noted: 'Definitely worth the drive in to the...
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Based on 17 reviews

Common Concerns

The restroom facilities were a major concern among reviewers. One camper said: 'The bathroom wasn't worth using, watched people walk to it and walk away even my boy said it was nasty.' Other...
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Based on 17 reviews

Pro Tips & Recommendations

Campers should carry potable water and fly traps due to the lack of water facilities and the presence of biting insects. Preparing for seclusion and self-sufficiency is advised.
Based on 17 reviews

Seasonal Insights

The campground is open seasonally from June to October. Warm and dry weeks are ideal for camping, especially during early summer, while biting flies and spiders seem more prevalent later in the...
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Based on 17 reviews

Camper Quotes

1. 'Definitely worth the drive in to the canyon! This was a beautiful and quiet camp.' 2. 'The bathroom wasn't worth using, watched people walk to it and walk away even my boy said it was nasty.'
Based on 17 reviews

Site-Specific Reviews

Reviewers did not specify individual campsite numbers but mentioned that the sites are well-spaced, which contributes to the peaceful experience.
Based on 17 reviews

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Last updated January 13, 2026
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