Greenleaf Peak, Mountain summit in Skamania County, Washington, United States.

Greenleaf Peak is a 3,424-foot mountain in the Cascade Range on the north side of the Columbia River, within the Columbia River Gorge National Scenic Area near Bonneville Dam. Just south of the summit, the Red Bluffs escarpment exposes about 1,300 feet of the Eagle Creek formation and connects the peak to Table Mountain. Dense coniferous forest covers the lower slopes, and power lines cross in front of the trees at the base.

Botanist David Douglas climbed to the summit in September 1825, the first recorded mountain ascent in what is now Washington state. The peak lies on the north side of the Columbia River near Table Mountain, within the Columbia River Gorge National Scenic Area near Bonneville Dam.

The name Greenleaf comes from the botanist David Douglas's 1825 ascent, the first recorded mountain climb in what is now Washington. Visitors today see the forested basin and Greenleaf Creek, which drops as a waterfall over the Red Bluffs escarpment south of the summit.

The summit lies within the Table Mountain Natural Resources Conservation Area near Bonneville Dam, on the north side of the Columbia River. Greenleaf Basin, a forested wetland averaging 2,040 feet, sits between the peak and Table Mountain, and Greenleaf Creek drains it over the Red Bluffs as a waterfall. The 2007-2008 slide on the south slope buried about 30 acres of forest.

The 2007–2008 slide on the south slope, in the state-owned Table Mountain Natural Resources Conservation Area, moved 3 to 5 acres of timbered rocky cliff and buried about 30 acres of forest under rubble. It measured roughly 750 feet wide and half a mile long.