Ketchum Cemetery. On February 9, 1945 a B-24 Liberator bomber crashed on Mount Harrison in the Albion Division of the forest during a training mission in dense fog. All nine crew were killed in the crash, and their bodies were found inside the plane and recovered over the following days. The plane's remains have never been removed. A memorial service was held on July 29, 2004 and a plaque was permanently installed honoring those who died. Recreation Sawtooth National Forest receives over one million visitors a year. Two visitor centers, one at the SNRA headquarters north of Ketchum and one at Redfish Lake, provide orientation, books, maps, and interpretive displays and are staffed by either forest service interpreters or volunteers. The forest's ranger stations also provide these services, but without interpretive displays. Along the roadways, exhibits showcase key parts of the forest, and there are plentiful day use and picnic areas. There are more than 81 campgrounds in the forest, with 12 in the Fairfield District, 6 in the Ketchum District, 25 in the Minidoka District, and 38 in the SNRA. Most of the campgrounds are on a first come first served basis, while some can be reserved. Visiting distant backcountry areas requires accessing hiking trails and then backpacking or horseback riding into remote destinations. Free permits are required for use of the wilderness and can be obtained at trailheads. Group size is restricted in the wilderness, open fires are not permitted in some high-use areas, and visitors are expected to follow Leave No Trace practices. There are abundant trails throughout the forest, with over in the SNRA, in the Fairfield District, and in the Minidoka District. Two National Recreation Trails are found on the forest, the Fishhook Creek Boardwalk at Redfish Lake and the Wood River Nature Trail at the Wood River Campground. All-terrain vehicles are allowed on over of forest roads and some trails, but access may be restricted depending on season and environmental conditions. The Sun Valley area has an extensive network of mountain biking trails. Hunting and fishing are popular recreational activities permitted throughout the forest, provided that proper permits are obtained and the applicable rules and regulations are followed. Hunting and fishing licenses are available from the state of Idaho through the Idaho Department of Fish and Game. The SNRA is the primary destination for mountain climbers and rock climbers within the forest. Thompson Peak