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Little Flat to Bummer Peak route map
Difficulty: ModerateOut and Back
Lake Sonoma / Warm Springs Dam (Dry Creek Lake And Channel) — Public Boat Ramp/California

Little Flat to Bummer Peak

Geyserville, California

4.7 mi

Distance

965 ft

Elev. Gain

2h 3m

Est. Time

Out & Back

Route Type

Moderate

Difficulty

About This Trail

We don't publish a description for Little Flat to Bummer Peak unless we can point you at the agency it came from. We don't have one yet. The planning figures above — distance, elevation gain, estimated time, route type — come from the source listed on this trail.

US Army Corps of Engineers manages this trail and is the authority for conditions, closures and route notes. See official sources below. Spot something we should add?

Trail Conditions

Trail Conditions

Unknown

We have no current condition data for this trail. Check with the operator before you go, and submit a report below if you've been recently.

No recent condition reports. Be the first to share what you see on the trail.

Elevation Profile

Min:157 ft
Max:345 ft
Gain:416 ft
Loss:416 ft
Elevation profileA line rising and falling between 157 ft and 345 ft across 4.7 mi along the route, drawn from start to end.157 ft220 ft282 ft345 ft0.0 mi1.2 mi2.4 mi3.6 mi4.7 mi

Elevation at the labelled points along this route
PointDistance from startElevation
Start0.0 mi167 ft
High point3.4 mi345 ft
End4.7 mi167 ft

Trail Details

Route Type
Out & Back

Official sources & verification

Managed by US Army Corps of Engineers

Verify before you go

Where it is

Nearest town:
Cloverdale, CA · about 5 mi away
County:
Sonoma County, CA
Jurisdiction:
Lake Sonoma / Warm Springs Dam (Dry Creek Lake And Channel) — Public Boat Ramp · US Army Corps of Engineers

Nearest town and county from U.S. Census Bureau place records and county boundaries.

We display cached information from agency feeds. Hours, fees, permits, closures, fire restrictions, and conditions change without notice. Outdoors is not the permitting authority. Confirm current conditions for this trail using the links above before you go — you are responsible for compliance. Last verified by us: May 23, 2026. Our copy is more than a month old — please reconfirm with the agency before relying on it.Spot an error in our data?

Reviews

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Legacy import — verify before navigating

Path geometry came from our pre-launch legacy database. Routes have not yet been re-verified against the operator and may differ from the actual trail.

Nearby Trails

More trails near Little Flat to Bummer Peak
Dry Creek, North Slope and Bummer Trails

Dry Creek, North Slope and Bummer Trails

4.2 mi
TrailDifficulty: Moderate

Dry Creek Trail

2.1 mi
TrailDifficulty: Moderate

Public boat ramp spur

0.4 mi
TrailDifficulty: Easy

Crossroad Trail

0.5 mi
TrailDifficulty: Easy
Dry Creek, Rancheria, Boar Scat Loop

Dry Creek, Rancheria, Boar Scat Loop

9.0 mi
TrailDifficulty: Difficult

Overlook Trail

0.8 mi
TrailDifficulty: Easy

Stay nearby

Campgrounds near this trail

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Spot an error in our data on Little Flat to Bummer Peak?