Wenatchee National Forest is a U.S. National Forest located in Washington. With an area of 1,735,394 acres (2,711.55 sq mi, or 7,022.89 km²), it extends about 137 miles along the eastern slopes of the Cascade Range of Washington, USA from Okanogan National Forest to Gifford Pinchot National Forest. The forest is located in Chelan, Kittitas and Yakima counties.
There are six officially designated wilderness areas within Wenatchee National Forest that are part of the National Wilderness Preservation System. All of them lie partially in neighboring National Forests (as indicated).
Nearly two miles long and accessible only by hiking or horse trails, Waptus Lake is the largest Alpine lake in the National Forest. Drained by the Waptus River, it is notable for its views of Summit Chief and Bears Breast mountains.
The Okanogan and Wenatchee National Forests are managed together as the Okanogan-Wenatchee National Forest with headquarters in Wenatchee, Washington. There are local ranger district offices located in Chelan, Cle Elum, Entiat, Methow Valley, Naches, Tonasket, and Wenatchee River. The first forest supervisor of Wenatchee National Forest was Albert H. Sylvester, who named over a thousand natural features in the region.
A 1993 United States Forest Service study estimated that the extent of old growth in the Forest was 318,800 acres (129,000 ha). Wildfires are not uncommon in the National Forest. In September 2012, a severe lightning storm ignited hundreds of fires, the largest of which were located southwest of the city of Wenatchee and east of Blewett Pass. Significant wildfires occurred again in July 2014, in the Chiwaukum and Entiat Mountains.