excellent for birding as well. The American dipper (Cinclus mexicanus) can be seen during the winter months, which birders will also find a successful time to listen for the great horned owl (Bubo virginianus) and boreal owl (Aegolius funereus). Visitors can rent yurts and cabins along the Eagle River in order to spend time out exploring the scenery and wildlife in the area. Camping is available at the Eagle River Campground. The Historic Iditarod Trail (or Crow Pass Trail) also passes by the nature center. This popular trail travels through the park connecting Eagle River and Girdwood as it traverses the Chugach Mountains. It affords incredible views and wildlife viewing opportunities. Even along the first view miles, hikers often see hoary marmots (Marmota caligata) and Arctic ground squirrels (Urocitellus parryii), and occasionally mountain goats (Oreamnos americanus) or Dall sheep (Ovis dalli). Hoary marmots live in alpine meadows, often adjacent to boulders or talus. These furry creatures hibernate from mid-September until April or early May. In summer, they can be heard making long whistle warning calls. Mountain goats and their kids and Dall sheep with lambs can be seen feeding on slopes above the trail during the late spring and summer. Although easily mistaken for each other, mountain goats have a fashion edge over sheep—their long leg hairs resemble pantaloons. Hillside The Hillside Trail System lies only 20 minutes east of downtown Anchorage. A privately run shuttle - Flattop Mountain Shuttle - provides round-trip transportation between downtown and the Glen Alps Trailhead. A wheelchair-accessible walk of a mere quarter mile (0.4 kilometers) from the trailhead leads to a sitting area and viewing deck that overlooks the city and rewards visitors with views of the Cook Inlet and the Alaska Range in the distance. The trailhead is likewise the primary access to Flattop Mountain, the most hiked peak in the state. During the winter some trails in the area are prone to avalanches. Hikers are encouraged to inquire about current conditions before beginning travel in the area. The Powerline Pass Trail is a popular location for dogsledding and skijoring. Though moose (Alces alces gigas) may be seen along many of the park's trails, a more predictable and convenient spot is the viewing platform at Glen Alps in fall and early winter. Dozens of moose are often seen below the platform and across the Campbell Creek Valley to the east. Wolves (Canis lupus)