Bicycling in Grand Teton National Park

Teton Park Road and Jackson Hole Highway are generally flat with long, gradual inclines, and have well-marked shoulders. Cyclists should be very careful when sharing the road with vehicles, especially RVs and trailers. The first phase of a paved bike path along Teton Park Road was completed in 2008 and runs between Moose and the visitor center at Jenny Lake. A bike lane allows for northbound bike traffic along the one-way Jenny Lake Loop Road, a one-hour ride. The River Road, 4 mi north of Moose, is an easy four-hour mountain-bike ride along a ridge above the Snake River on a gravel road. Bicycles are not allowed on trails or in the backcountry.

In Jackson, ride the Snow King trails system that begins at Snow King resort. The Cache Creek to Game Creek loop is a 25-mi ride on dirt roads and trails. The two trails systems also link together. In addition, the surrounding Bridger-Teton National Forest has abundant mountain-biking trails and roads.

Outfitters and Expeditions

Fitzgeralds Bicycles. Jackson's hub for cycling culture, Fitzgeralds Bicycles' offers mountain- and road-bike rentals, sales, accessories, and repairs. 245 W. Hansen St., Jackson, WY, 83001. 307/734-6886. www.fitzgeraldsbicycles.com.

Teton Mountain Bike Tours. Mountain bikers of all skill levels can take guided half-, full-, or multiday tours with Teton Mountain Bike Tours into both Grand Teton and Yellowstone national parks, as well as winter tours of Jackson Hole on studded tires. The new store has rentals, and it's the closest place in Jackson to the new bike trail between the city and the park. 545 N. Cache St., WY, 83002. 307/733-0712 or 800/733-0788. www.tetonmtbike.com. Half- to full-day trips $60-$150, four-day Teton/Yellowstone tour $1995. May-Sept.