Iwetemlaykin State Heritage Site, a public park in the U.S. state of Oregon, is on the south edge of Joseph, along Oregon Route 351.
Its name comes from the Nez Perce place name, Iwetemlaykin (pronounced ee-weh-TEMM-lye-kinn), which means "at the edge of the lake". The park, near Wallowa Lake, is adjacent to one of the 38 sites of the Nez Perce National Historical Park, the site of the Old Chief Joseph grave and cemetery.
Established in 2009, the park lies on of land in an area that was once part of the homeland of the Nez Perce. Park amenities include a walking trail, Knight's pond, wildlife watching, native plants, views of the Wallowa Mountains, parking, and a restroom.