Leslie Gulch is a canyon in Malheur County, Oregon, United States. It is on the east side of Owyhee Lake, a reservoir on the Owyhee River. Its abundant and striking rock formations are made of tuff.
The gulch was named after a local rancher, Hiram E. Leslie, who was hit by lightning here in 1882. Previously it had been called "Dugout Gulch."
The last 15mi of the gulch are on a smooth, but curvy gravel road, adding a bit of time to get there.
The area is administered by the Bureau of Land Management (BLM).
At the end of the Leslie Gulch road at Owyhee Lake there is a boat launching ramp. At certain times of the year the water level is below the ramp which makes putting big boats in the lake impossible; smaller boats may have to be taken to the lake by hand. Nearby is the 8-unit Slocum Creek - Leslie Gulch Campground, operated by the BLM, which is open from March through November. The road to the campground is also prone to flash floods which can wash out the road in places.
Two species of herbaceous plants are endemic to this drainage. Ertter's ragwort Senecio ertterae Packard's blazingstar Mentzelia packardiae
Other rare plants found here are grimy ivesia, sterile milkvetch, and Owyhee clover.
A herd of bighorn sheep was established there in 1965. It now consists of more than 200 animals. Mule deer, coyotes, bobcats, Rocky Mountain elk, and rattlesnakes are also resident in the gulch.
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Leslie Gulch Reviews
This place has beautiful rock formations that are breathtaking! The road is a little rough, but worth it. more »
Geology changes as you drive through. Road conditions were good for a Ford Mustang, watch for a few eroded spots as you get closer to the reservoir. Did not see any mountain sheep, but did... more »
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