SHERIDAN — For the next event in a series of outings celebrating the 50th anniversary of the Wilderness Act of 1964 and the 30th anniversary of the Wyoming Wilderness Act of 1984, the Wyoming Wilderness Association will host a hike up Crystal Creek in the Gros Ventre Wilderness on July 24 to view nature at work. This includes an interpretive hike with Tim Farris as he explains backcountry trail maintenance. Hikers will learn how the Forest Service manages challenges in its trail maintenance program. The hike is approximately 9 miles round-trip. For more information or to register call the WWA at 672-2751 or email firstname.lastname@example.org.