Turtlehead Peak (6, 323 ft) is located in Red Rock Canyon National Conservation Area, and one of the most popular hikes in the park. To reach the trailhead (TH) you must have a timed entry reservation for Red Rocks (get that here), and start hiking early to beat to people all the people and weather. Turtlehead Peak offers amazing views of the entire area, and on a clear day you can even see the Las Vegas Strip!
Idaho's Yur-Treat is located just outside Victor, Idaho on the west side of the Tetons. It's about about 4.5 hours from Salt Lake City and tucked into a small grove of Aspen trees.