Big Falls waterfall
Live Conditions · 775 ft³/s · Lower than usual

Big Falls

Idaho

By Armen Suny · Last verified May 2026

Boise National Forest NF · US Forest Service
Photo Credits (4)
1.
aaron_anderer CC BY-ND 2.0 · Flickr
2.
@CarShowShooter CC BY-NC-SA 2.0 · Flickr
3.
Stand by Ukraine CC BY-NC-SA 2.0 · Flickr
4.
Alaskan Dude CC BY-NC 2.0 · Flickr

Difficulty

Moderate

Trail Length

2.4 miles

Trail Type

Out And Back

Elevation Gain

350 ft

About Big Falls

Big Falls is a dramatic waterfall set within Boise National Forest and managed by the U.S. Forest Service. Framed by dense forest, the falls make a rewarding destination for photographers and day-hikers looking for a relatively quick escape into wild Idaho scenery. The hike to the viewpoint is a manageable outing: the established trail is an out-and-back of about 2.4 miles with roughly 350 feet of elevation gain and is typically rated moderate. If you’re planning an overnight, note that the nearest developed campground (Park Creek) lies about 12.6 km away.

The Setting

Big Falls sits at 3,484 feet within Boise National Forest, fed by the South Fork Payette River, in the mountains of Idaho.

Trail & Hike Details

The Approach

The moderate 2.4-mile out-and-back trail gains 350 feet of elevation on the way to the falls.

Trail Description

Trail type: out-and-back; Distance: 2.4 miles; Elevation gain: ~350 ft; Difficulty: moderate. The route is a short, clearly routed hike that gains elevation in steady sections—moderate fitness is recommended for the climbs. (No USFS trail number, surface classification, or grade was provided in the supplied data.)

What to Expect

Dogs are welcome.

Accessibility

The trail is not wheelchair accessible. Uneven terrain and elevation changes require steady footing.

Frequently Asked Questions

🐶 Are Dogs Allowed at Big Falls?

✅ Dogs are allowed

Are There Any Fees or Permits Required?

🆖 No fees required

🏊 Is There Swimming at Big Falls?

❌ Swimming is not allowed

When to Visit

spring summer fall

The best time to visit is during spring and early summer when the water flow is at its peak due to snowmelt.

Seasonal Access

The best time to visit is Spring, Summer, and Fall. Winter access may be limited. Check with Boise National Forest for seasonal road closures.

Safety Information

Be cautious near the edge of the viewing area as rocks can be slippery. Check weather conditions before visiting, as the trail may become hazardous during heavy rain or snow.

Current Water Conditions

Updated about 2 hours ago Barely Flowing

775 ft³/s

Current discharge — how much water is flowing

Lower than usual for this time of year

Based on 84 years of record

3.91 ft

Water depth at gauge

7-Day Discharge Trend

What does this mean for your visit?

Flow is lower than usual for this time of year.

About This Gauge

This gauge is on a nearby waterway and may not reflect exact conditions at the falls.

USGS 13235000
5.2 miles from waterfall
Drainage: 446 sq mi
Altitude: 3,770 ft

7-Day Flow Outlook

Based on the USGS gauge SOUTH FORK PAYETTE RIVER AT LOWMAN, ID (8 km away).

High confidence
Barely Flowing right now
775 cfs
→ Holding steady
0000084TodayTomorrowSunMonTueWedThu

Today

Barely Flowing

775 cfs

5/10

Tomorrow

Barely Flowing

755 cfs

5/10

Sun

Barely Flowing

728 cfs

5/10

Mon

Barely Flowing

708 cfs

5/10

Tue

Barely Flowing

675 cfs

5/10

Wed

Barely Flowing

696 cfs

3/10

Thu

Barely Flowing

649 cfs

5/10

Best window: Today — barely flowing flow, sunny (trip score 5/10).

Best time of year: this gauge typically runs highest from mid April to mid July, peaking in June.

How we calculate this

This is a transparent outlook, not a precise forecast. We take the waterfall's current flow strength (how it ranks against its historical normal for today, from the nearest USGS stream gauge), carry that ranking forward along the gauge's seasonal curve, and nudge it for forecast rain. Confidence is highest for the next day or two and falls further out. Always check official conditions and your own judgment before visiting — high flows can be dangerous.

Know when to go.

Get a free email alert when waterfalls near Lowman hit peak flow. We only send when conditions are worth the trip — no weekly newsletters, no spam.

Weather Forecast

Location & Access

Getting There

Big Falls is located near Ashton, Idaho, within the Caribou-Targhee National Forest. It can be accessed via a short drive from Highway 20, followed by a gravel road leading to the parking area.

Get Directions on Google Maps

Parking

There is a designated parking area near the trailhead, but availability may be limited during peak seasons.

Elevation

3,484 feet above sea level

Coordinates

44.066285° N, -115.723166° W

Land Management

Boise National Forest NF

Managed by USFS

Where to Stay

Some links are affiliate links. We may earn a commission at no extra cost to you.

Nearby Campground

PARK CREEK (IDAHO)

7.9 miles away · 26 sites

Reservable

Overview Park Creek Campground is located 4 miles from Lowman, Idaho, off the beaten path at the confluence of Park and Clear Creeks. Visitors enjoy fishing, hunting and exploring local trails.Recreation Park Creek and Clear Creek both offer good trout fishing. Various hiking, biking, horseback and off-road vehicle riding trails are in the vicinity.Facilities The campground contains two group sites available by advanced reservations, each can accommodate up to 100 people per group site. The Rainb

Book on Recreation.gov

Additional Information

Nearby Attractions

Mesa Falls Scenic Byway, Harriman State Park, Yellowstone National Park (approximately 1.5 hours away).

Wildlife

The area is home to various wildlife, including deer, birds, and occasionally bears. Always practice caution and keep a safe distance from animals.

Nearby Waterfalls

42.9 miles away
Idaho
Moderate
2.4 miles 350 ft

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