• The Cathedral Group from the Teton Park Road

    Grand Teton

    National Park Wyoming

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  • Bears are active in Grand Teton

    Black and grizzly bears are roaming throughout the park--near roads, trails and in backcountry areas. Hikers and backcountry users are advised to travel in groups of three or more, make noise and carry bear spray. Visitors must stay 100 yards from bears. More »

  • Moose-Wilson Road Closure

    The Moose-Wilson Road between Death Canyon Junction north to the intersection with the Murie Center Road is temporarily closed to motor vehicles, bicycles, skating, skateboards and similar devices. For current road conditions call 307-739-3682. More »

  • Multi-use Pathway Closures

    Intermittent closures of the park Multi-use Pathway System will occur through mid-October during asphalt sealing and safety improvement work. Pathway sections will reopen as work is completed. Follow the link for a map and more information. More »

Grassy Lake Road - Countdown: 28 Days

July 28, 2012 Posted by: DL

Grassy Lake Road
NPS Photo/Danielle Lehle

Grassy Lake Road is the east-west artery through the John D. Rockefeller, Jr. Memorial Parkway.  From this road, you can access the major hiking trails, primitive campsites, and lodging and facilities.

Polecat Creek
Polecat Creek - NPS Photo/Danielle Lehle

This road is also called the Ashton-Flagg Ranch Rd on some mapping applications (websites? Devices? Definitely google-maps.)  Your GPS may tell you that this is the easiest way to cut across to Idaho. Don't believe it.  As the crow flies, it is definitely the shortest route from Flagg Ranch to Ashton.  As the car drives… well, that's another thing altogether.  The first mile of the road is paved, and after that, it is 36 miles of gravel road - sometimes washboarded, sometimes rutted, often windy, always narrow - and 12 more miles to Ashton, ID.  Travel time from Flagg Ranch to Ashton by this route usually takes a minimum of 3 hours.

Elk and deer may be seen grazing along the edges of the meadows
NPS Photo/Danielle Lehle

Trailheads Along the Grassy Lake Road

The trailheads for Polecat Creek Loop, Flagg Canyon, and Glade Creek Trails are located inside the Parkway.

The trailheads for Beula Lake, Cascade Creek, and Union Falls are found in the Caribou-Targhee National Forest just west of the JODR.  These hikes continue into Yellowstone National Park.

The Glade Creek Trailhead begins in an area burned by the Huck Fire in 1988
NPS Photo/Danielle Lehle

Camping Along the Grassy Lake Road

Headwaters Campground and RV sites at Flagg Ranch: 175 sites in a conifer forest, full hook-up RV sites (20 and 50 amp electric), and camper cabins.  Services include dump station, showers, and laundry.  Call 800-443-2311 for reservations.

Grassy Lake Road campsites: twenty primitive campsites along a gravel road passable to all vehicles with picnic tables, pit toilets, trash cans, and food storage boxes.  No water.  Free of charge - first come, first served.  Some sites are suitable for small RVs.

Primitive campsite along Grassy Lake Road
NPS Photo/Danielle Lehle

Did You Know?

Close-up of a lodgepole pine cone

Did you know that lodgepole pine trees grow on glacial moraines in Jackson Hole? Glacial moraines are ridges of rocky debris left behind as Ice Age glaciers melted. The soil on these ridges retains moisture and is more hospitable to trees than the cobbly, porous soil on the outwash plain.