John D. Rockefeller, Jr. Memorial Parkway shares 82 miles of two-lane road that is U.S. Routes 89, 191, and 287 from Grand Teton National Park National Park north to West Thumb Geyser Basin in Yellowstone National Park. Its name honors the conservationist and philanthropist who contributed to the creation of Acadia, Grand Teton, Great Smoky Mountains, and Virgin Islands National Parks. Originally part of Teton National Forest, this land includes the Flagg Ranch concession, which had its lodge, restaurant, gas station, and campground moved from along the Snake River to a point less visible from the road in 2002.
Highlights
Flagg Ranch, Huckleberry Hot Springs, Polecat Hot Springs
Must-Do Activity
Huckleberry and Polecat Hot Springs are easily accessed by walking less than a mile down a closed dirt road not far from historic Flagg Ranch. Polecat Creek Loop Trail can be completed as a 2.5-mile loop that is narrow and overgrown by vegetation in places. Be on the lookout for grizzly bears, black bears, elk, and moose. Trout fishing in the Snake River is also a popular activity in John D. Rockefeller, Jr. Memorial Parkway. The parkway is plowed to Flagg Ranch in the winter, making it a shared trailhead for snowmobilers, snowshoers, and cross-country skiers.
Best Trail
Flagg Canyon Trail is a five-mile out-and-back hike along the Snake River with 340 feet of cumulative elevation gain after it crosses the busy parkway east of Flagg Ranch.
Photographic Opportunity
Driving unpaved and potholed Grassy Lake Road provides views to the south of the Teton Range.
The parkway is paved and closes for the winter at Flagg Ranch when the south entrance to Yellowstone National Park shuts down. Closed annually for grizzly bear migration until June 1, Grassy Lake Road heads 49 miles west to Ashton, Idaho (the easternmost 36 miles are a potholed dirt track for high-clearance vehicles that enters Targhee National Forest, which is popular for dispersed camping).
Camping
There is a lodge at Flagg Ranch, plus Headwaters Campground takes reservations and offers 34 tent sites, 97 full-hookup RV sites, and 40 Camper Cabins (open June 7 to October 4, 2026). Along rough Grassy Lake Road there are eight free camp areas with 14 first-come, first-served campsites equipped with vault toilets and bear boxes. There are also campgrounds in Teton National Forest and primitive dispersed campsites near Grassy Lake once the road enters Targhee National Forest.
Medicine Bow National Forest is spread across three separate units in southern Wyoming and another located to the north between the cities of Laramie and Casper. Within the latter unit is 10,272-foot Laramie Peak, a major landmark along the historic Oregon Trail. Snowy Range Scenic Byway (Highway 130) provides access in the summer to the high-elevation recreational opportunities found in the mountains. In 1995, Medicine Bow National Forest was administratively combined with Routt National Forest and Thunder Basin National Grassland.
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Highlights
Snowy Range Scenic Byway, Brooklyn Lake Campground, Medicine Bow Peak, Lake Marie, Sierra Madres, Aspen Alley, Hog Park Reservoir, Happy Jack Recreation Area, Vedauwoo, Laramie Peak Trail, Continental Divide National Scenic Trail
Must-Do Activity
Medicine Bow Peak stands at 12,013 feet within the Snowy Range near the Wyoming-Colorado border and has two steep, rocky trails to its summit which can be combined into a long loop. The 29-mile-long Snowy Range Scenic Byway cuts across this rugged landscape and is a great place for summer camping, fishing, hiking, horseback riding, mountain biking, and backpacking. The road closes in the winter, but is still a destination for snowmobiling, downhill skiing, cross-country skiing, and snowshoeing. Medicine Bow gets its name from annual tribal gatherings when ceremonies were held and mountain mahogany was gathered for bow making.
Best Trail
Vedauwoo Recreation Area is visible from Interstate 80 between Laramie and Cheyenne, but feels worlds apart. Its maze of boulders is a fun place to visit in the winter or summer (when the campground is open). The 3.2-mile Turtle Rock Trail circles the area, but it is more fun to climb around off trail. Near the end of winter, snow drifts pile six-feet-high next to ground swept bare. In the glens protected by the 200-foot-tall rock outcrops, snowflakes cling to the bare branches of aspen and maple trees, and stick in the needles of junipers, Douglas-firs, and ponderosa pines. Vedauwoo is an Arapaho word meaning “earthborn,” also the name of a nature spirit character in summer theater performances held here in the 1920s by the University of Wyoming. This forest was once depleted for telegraph poles and railroad ties before the Civilian Conservation Corps (CCC) planted 280,000 trees in the 1930s. It was used for over 50 years of military target practice, significant because there are unexploded munitions still in the ground. Vedauwoo is located near the Happy Jack Recreation Area, which at 8,640 feet is the highest point along Interstate 80 between San Francisco and New York City. This cross-country road was originally called the Lincoln Highway, hence the giant sculpture of Abraham Lincoln’s head at the nearby rest area.
Watchable Wildlife
After a cold day on the National Forest’s cross-country ski trails at Brush Creek (built in the 1930s by the Civilian Conservation Corps) or Chimney Park, we always made it a point to stop in Saratoga where hot springs water is piped into the free outdoor Hobo Pool adjacent to the North Platte River. This area is a favored wintering ground for bald and golden eagles, so you may witness a flyover during your soak. Also watch for mule deer in town and a variety of waterfowl along the river. Moose, elk, and pronghorn (at lower elevations) are found in the National Forest. Black bears, mountain lions, coyotes, and red foxes reside here, too. Trout fishing in lakes and streams is a major draw to the mountains.
Photographic Opportunity
Lake Marie along the Snowy Range Scenic Byway is one of the most widely used photographs for tourism publications in this corner of Wyoming.
Peak Season
Summer
Fees
Day use fees of $5 per vehicle (or America the Beautiful pass) apply at Vedauwoo, Tie City Trailhead, Happy Jack Trailhead, and the western terminus of Headquarters National Recreation Trail, as well as Sugarloaf and West Lake Marie Trailhead along Snowy Range Scenic Byway.
Road Conditions
The gravel Vedauwoo Road (closed in spring) is good enough for RVs, as are some of the side roads off paved Snowy Range Scenic Byway (closed in winter). Beware the rutted Forest Road 336 near Libby Flats and some other four-wheel-drive-only routes. Several roads become snowmobile routes in the winter, including most of Snowy Range Scenic Byway west of the ski resort.
Camping
In addition to a large designated campground at the Vedauwoo exit off Interstate 80, Vedauwoo Road has designated free campsites marked by a post and offer dispersed camping along other surrounding roads. Brooklyn Lake is one of several designated campgrounds along the Snowy Range Scenic Byway where dispersed campsites are harder to find. Between Casper and Cheyenne, Laramie Peak dominates the prairie landscape and if you hike to its summit you can overlook hundreds of miles of the historic Oregon Trail. Although much of this section of forest has been affected by wildfires, there is still plenty of natural beauty and out of the way places to pitch a tent along its labyrinthine road system.
Wilderness Areas
Encampment River Wilderness
Huston Park Wilderness
Platte River Wilderness (also in Routt National Forest)
VedauwooBull mooseVedauwooCross-country skiing at Chimney ParkBeaver activityMule deerHeadquarters National Recreation TrailTiff on the Rail TrailSnow sledding at Happy Jack Recreation Area
Explore More – Near Vedauwoo, a 60-foot-tall granite pyramid was built in 1882 to honor whom?
Know someone who loves the National Forests? Gift them our travel guidebook Out in the Woods so they can learn more about this and the 154 other National Forests.
Thunder Basin is part of the Powder River Basin situated between the Big Horn Mountains and the Black Hills. Elevations in the National Grassland range from 3,600 to 5,200 feet in the transition zone between the Great Plains and sagebrush steppe. It was established in 1960 and is currently managed along with Routt and Medicine Bow National Forests. Its acreage is interspersed with private inholdings and areas run by the Bureau of Land Management.
Highlights
Weston Recreation Area, Soda Well Picnic Site, reservoirs
Must-Do Activity
Although Thunder Basin National Grassland is mostly undeveloped for tourists, Weston Recreation Area is located 30 miles north of Gillette off Highway 59 with at least 15 miles of Off-Highway Vehicle (OHV) trails. Fishing for warm water species like smallmouth bass and bluegill is possible at the following reservoirs: East Iron Creek, Kellogg, Little Powder, Little Thunder, Turner, and Weston (where there is a vault toilet). There is a picnic shelter at Soda Well, site of the ghost town of Weston, Wyoming.
Best Trail
The East Upton Trailhead and Kellogg Trailhead are both located in the northeastern-most corner of the National Grassland about two miles north of Upton. Generally, it is possible to hike cross-country wearing sturdy boots to avoid hidden prickly pear and hedgehog cacti. Be sure to wear bright colors during the various hunting seasons.
Watchable Wildlife
On our March visit to Thunder Basin National Grassland, we saw pronghorn, elk, and mule deer out grazing on the prairie. Small rodents are prevalent, including white-tailed jackrabbits, cottontail rabbits, kangaroo rats, thirteen-lined ground squirrels, and black-tailed prairie dogs, a keystone species whose burrows create habitat for burrowing owls, prairie rattlesnakes, mountain plovers, and endangered black-footed ferrets. Predatory mammals found here include the swift fox, red fox, badger, and coyote. Sagebrush cover may support sage grouse, a species of management concern.
Photographic Opportunity
Early spring is a great time to visit to see large ungulates before they migrate to higher elevations and to hear the first mating calls of meadowlarks.
Peak Season
Spring
Fees
None
Road Conditions
The unpaved roads we drove were graded and accessible to passenger vehicles, but that is probably not the case when they are wet.
Camping
There are no developed campgrounds in this National Grassland, but dispersed camping is allowed on public land so use the app or get a good map to make sure you are not on the private land parcels interspersed throughout. The Forest Service website recommends camping along Forest Road 1246.
We decided to write about the Continental Divide National Scenic Trail (CDT) now, since Tiff recently finished backpacking the entire 512-mile Wyoming section of the route. The CDT stretches 3,028 miles from the Crazy Cook Monument on the border with Mexico north to Waterton-Glacier International Peace Park. The official trail is known as the “red route,” with popular alternatives called “blue routes” detouring through sections like New Mexico’s Gila Wilderness (which 95% of thru-hikers choose). Tiff was supported by Scott along portions of the trail and they both backpacked through Yellowstone National Park together. Tiff met dozens of thru-hikers doing the entire trail this year, many of whom were “flip-flopping” after getting stopped north bound (NOBO) by snowy Colorado mountains so switching to a south bound (SOBO) direction to finish.
It takes the average thru-hiker 147 days to complete the trek (including “zeros days”), but you can get a feel for the experience on shorter point-to-point or loop hikes. We have done the Rocky Mountain National Park section as a long day hike and Scott has backpacked the minimum 40 miles to see the famous Chinese Wall in Montana’s Lewis and Clark National Forest. We had all three of our backcountry campsites to ourselves along Yellowstone National Park’s 67-mile stretch of CDT and went a full day without seeing another person near the park’s Idaho border.
Best Trail
The Wind River Range in Wyoming’s Bridger National Forest is probably the most scenic stretch of mountains on the entire CDT. Many thru-hikers detour to a blue route to see beautiful, but overcrowded Titcomb Basin and the Cirque of the Towers (actually in neighboring Shoshone National Forest). Read more about our 2020 trip (mostly) following the CDT 120 miles through the range in our newspaper article.
Instagram-worthy Photo
The CDT goes right past crowded Old Faithful in Yellowstone National Park’s Lower Geyser Basin, although there are other areas of colorful hot springs like those near Heart Lake (pictured).
Peak Season
Summer
Fees
Fees apply if you camp inside or drive into Rocky Mountain, Yellowstone, and Glacier National Parks
Road Conditions
Much of the trail is actually walking dirt roads and some paved roads, especially in New Mexico. Access roads to certain trailheads can be very rough and require driving long unpaved sections, such as the 30 miles to busy Big Sandy Trailhead in Bridger National Forest.
Camping
Camping is dispersed except for designated sites (permit required) in Rocky Mountain, Yellowstone, and Glacier National Parks.
Tiff starting at the Colorado-Wyoming borderTiff in Wyoming’s South Pass City State Historic SiteEntering the Wind River RangeTiff in the Wind River RangeScott near Terrace MountainMule deerWolf tracks outside Tiff’s tent in the morningTiff at Heart Lake in Yellowstone National ParkSandhill cranes in Yellowstone National ParkShoshone Lake in Yellowstone National ParkScott crossing the Lewis River in Yellowstone National ParkGeysers in Yellowstone National ParkTiff at Old Faithful in Yellowstone National ParkYellowstone National ParkTiff finished at the Idaho border in Yellowstone National ParkBeargrass in Montana’s Lewis and Clark National ForestGrizzly bear in Lewis and Clark National ForestChinese WallLewis and Clark National Forest
Explore More – Which three oceans receive water from Triple Divide Pass in Montana?
Co-managed as Caribou-Targhee National Forest since 2000, Caribou National Forest is located in the southeastern corner of Idaho. To add to the jurisdictional muddle, Caribou National Forest has also administered the 263,940-acre Idaho portion of Wasatch-Cache National Forest since 1973 (see previous blog post). However, nearly 50 years later all of the wooden signs in this area still read Cache National Forest. Despite the signage, U.S. Forest Service publications and topographic maps identify Minnetonka Cave and Paris Ice Cave as being in Caribou-Targhee National Forest, so we went with that. Confused? So are we, so much so that we made a phone call to a Forest Service employee in this ranger district that still did not clear up the bureaucratic mess.
Highlights
Pioneer Historic Scenic Byway, Minnetonka Cave, Paris Ice Cave, Caribou City ghost town, Malad Range, Tincup Mountain, Oregon Trail-Bear Lake Scenic Byway, Lander Cutoff, Oneida Salt Works, Cherry Springs Nature Area, Montpelier Canyon, Bloomington Lake, Scout Mountain Nature Trail
Must-Do Activity
In Montpelier, Idaho, the National Oregon/California Trail Center is managed by the U.S. Forest Service on the Pioneer Historic Scenic Byway. To the southwest, Minnetonka Cave is one of the few developed cave tours offered by (a concessionaire for) the Forest Service. The natural entrance to Minnetonka Cave was widened and the route lighted by the Works Progress Administration in the 1930s when 444 stairs were installed to allow large groups to visit. The tour goes out and back on the same route so the steep downward sections become climbs on the return trip, but guides make multiple stops in both directions to allow you to catch your breath at this high elevation.
Best Trail
Further north than Minnetonka Cave, a 9.5-mile long dirt road drive up to 7,800 feet in elevation leads to the short boardwalk through the Paris Ice Cave. This photogenic natural tunnel is open at both ends so it does not require a flashlight, but does retain snowpack deep into the summer months. Signs at both caves still say Cache National Forest even though this district has not been managed by them since 1973.
Watchable Wildlife
This is a fairly arid portion of the west, so you are more likely to see a ground squirrel, coyote, or mule deer than any other wildlife. In Minnetonka Cave, our tour guide pointed out a couple Townsend’s big-eared bats, which is why they screen all visitors for white-nosed bat syndrome. We disturbed a nesting robin when exiting the Paris Ice Cave.
Instagram-worthy Photo
On the Idaho-Utah border, the 109-square-mile Bear Lake has been called the “Caribbean of the Rockies” because of its water’s intense turquoise color, due to suspended limestone sediment. The naturally-formed lake sits at 5,924 feet in elevation and its maximum depth is 208 feet. Both states have their own Bear Lake State Park with boat ramps and beaches for swimming.
Peak Season
Summer
Fees
It costs $12 per person for the 80-minute Minnetonka Cave Tour that you must pay before driving up to the actual cave, but we did not come across any other fees.
Road Conditions
Access to Minnetonka Cave is paved and the 9.5-mile long dirt road drive up to Paris Ice Cave was good enough for our passenger vehicle to handle.
Camping
There are numerous campgrounds on the way to Minnetonka Cave and we found a large, flat dispersed camp along the road to Paris Ice Cave.
Cherry Springs Nature AreaRed osier dogwoodScout Mountain Nature TrailLooking towards Pocatello on the Scout Mountain Nature TrailEast Mink TrailLong-tailed weaselDouglas-fir coneScott in Paris Ice CaveParis Ice CaveTiff entering Paris Ice CaveMule deerTiff on the Minnetonka Cave TourMinnetonka CaveScott in Minnetonka CaveDispersed campsiteRaven about the forest
Learn more about Caribou and the 154 other National Forests in our new guidebook Out in the Woods
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