Most people drive Denver to Jackson Hole in a straight shot up I-25 and across I-80. It takes nine hours, it’s efficient, and you spend two-thirds of it staring at the flat tan plains of southern Wyoming.
This route is not that.
The scenic version runs about 1,066 miles over three days, dips south into northeastern Utah — which surprises everyone who looks at it for the first time — and strings together five named scenic byways and forest roads before dropping you into Jackson from the south through the Greys River canyon. It’s longer. It demands a capable vehicle on days two and three. And it’s one of the great long-form drives in the American West.
Here’s how to do it properly.
Trip essentials
| Total distance | ~1716 km |
| Driving time | ~23.5 hours (split across 3 days) |
| Overnights | Rock River, WY → Green River, WY → Jackson, WY |
| Best months | Late May through September |
| Vehicle | High-clearance strongly recommended; 4WD useful on Day 3 |
| Key closures | Trail Ridge Road closes roughly late October to late May |
Why this route goes through Utah
The route’s most unexpected move is on Day 2: after crossing the Wyoming state line on I-80, it turns south into Utah and runs through the Ashley National Forest along the Red Cloud Loop Scenic Backway near Vernal before looping back north toward Flaming Gorge.
If you’re flying in from the east and imagining a straight line between Colorado and Wyoming, this feels counterintuitive. It isn’t. The Ashley NF canyon country — red rock walls, pinyon-juniper ridgelines, the smell of sage and warm dust after any rain — is a completely different landscape from the high alpine you crossed in Colorado, and that contrast is part of what makes the trip feel full rather than monotonous.
The short version: you’re not backtracking. You’re collecting landscapes.
Route at a glance
| Day | From → To | Miles | Drive time | Overnight |
|---|---|---|---|---|
| Day 1 | Denver → Rock River, WY | 401 mi | ~8 hrs | Rock River, WY |
| Day 2 | Rock River → Green River, WY | 433 mi | ~8 hrs | Green River, WY |
| Day 3 | Green River → Jackson, WY | 232 mi | ~7.5 hrs | Jackson, WY |
Day 1: Denver to Rock River, WY
401 miles | ~8 hours driving
Leave Denver early. You want to reach Rocky Mountain National Park by mid-morning, before the Trail Ridge Road parking areas fill.
Denver to Rocky Mountain National Park
65 miles | ~1 hour 25 minutes I-25 N → US-36 W through Boulder → US-34 W
Head north out of the city on I-25, then pick up US-36 west toward Boulder. The Flatirons appear on your left as you pass through — a brief, angular preview of what’s coming. From Boulder, US-36 continues west and begins climbing, feeding you into Estes Park and the east entrance of Rocky Mountain National Park via US-34.
Entry fee: $35 per vehicle (valid 7 days). America the Beautiful Annual Pass ($80) is worth it if you’re visiting multiple parks on this trip — Grand Teton is ahead and also covered.
Through Rocky Mountain National Park via Trail Ridge Road
46 miles | ~1 hour US-34 W / Trail Ridge Road — seasonal closure: late October to late May
Trail Ridge Road is the spine of the park and the highest continuously paved road in the United States, reaching 12,183 feet at its peak. Eleven miles of it sit above 11,000 feet. In June, there can still be snowbanks on either side of the road higher than your car.
The drive takes around an hour if you don’t stop. You should stop. The Alpine Visitor Center at 11,796 feet is the obvious one, but the overlooks — Fall River Pass, Many Parks Curve, Gore Range Overlook — are where the scale of the park actually registers. The air is noticeably thinner; don’t be surprised if a short walk to a viewpoint leaves you briefly light-headed.
At the west side of the park, Trail Ridge Road descends into Grand Lake and the Kawuneeche Valley, where the Colorado River is barely more than a creek. Exit the park on US-34 west, turn right onto US-40, then pick up CO-125 north toward Walden.
Seasonal note: Trail Ridge Road is managed by Rocky Mountain National Park and typically opens for the season in late May, depending on snowpack. Check current status at nps.gov/romo before you travel.
Cache La Poudre–North Park Scenic and Historic Byway
101 miles | ~2 hours CO-14 east from Walden toward Fort Collins
From Walden, CO-14 east is the Cache La Poudre–North Park Scenic and Historic Byway — a 101-mile corridor that follows the Cache la Poudre River through its canyon and eventually into Fort Collins.
The canyon section, between Cameron Pass and Ted’s Place, is the highlight: narrow red walls, the river running close to the road, cottonwoods that turn gold in September. This stretch of the Poudre is Colorado’s only federally designated Wild and Scenic River. In summer, you’ll share the road with rafters putting in upstream.
After Fort Collins, the byway ends at its eastern trailhead. From here, continue north on US-287 toward Wyoming.
Cache La Poudre to Rock River, WY
117 miles | ~1 hour 55 minutes I-25 N → Owl Canyon Road → US-287 → I-80 into Wyoming
After the canyon beauty of CO-14, this leg is transition. Pick up I-25 north toward Cheyenne, then US-287 north through Laramie. The road flattens, the sky widens, and the pronghorn start appearing in the scrubland beside the highway — often in groups, moving fast.
Rock River, Wyoming is a town of about 200 people on the I-80 corridor, around an hour west of Laramie. It’s not a destination. It’s a place to sleep, fuel up, and eat a diner breakfast before a long morning in Utah. Options are limited to basic motels; book ahead if you’re travelling in summer. The town sits at the edge of the Laramie Range and on a clear evening the light on those low ridges is worth stepping outside for.
Day 1 driving summary: Denver → RMNP via Trail Ridge Road → Cache La Poudre canyon → US-287 north → overnight Rock River, WY
Day 2: Rock River to Green River, WY
433 miles | ~8 hours driving
Day 2 is the longest and most varied day, and the one that takes most people by surprise on the map.
Rock River to the Red Cloud Loop Road, Utah
250 miles | ~4 hours 20 minutes I-80 W → exit 99 onto US-191 S → south into Utah toward Vernal
From Rock River, get back on I-80 west. The drive across southern Wyoming is open and wind-battered, the kind of highway where trucks lean visibly in the gusts and the radio fades in and out. It’s not scenic, but it’s honest.
At Rock Springs, take exit 99 onto US-191 south. The road crosses the Wyoming-Utah state line and drops toward Vernal, Utah, running through the Uinta Basin. The landscape shifts noticeably: red sandstone appears, the sagebrush thins, and the elevation drops from the Wyoming high desert into canyon country.
Watch for the brown Forest Service signs for the Ashley National Forest. Turn right onto Forest Service Road 020 — this is the start of the Red Cloud Loop.
Red Cloud Loop Scenic Backway
48 miles | ~1 hour Forest Service Road 018 / Red Cloud Loop — high-clearance vehicle required
The Red Cloud Loop is a 48-mile Forest Service road that runs through the Ashley National Forest above Vernal. It passes through a mix of open ridgeline, pine and aspen groves, and canyon views toward the Uinta Mountains to the west.
The road is maintained gravel and dirt, and it’s passable in a standard SUV in dry conditions. In wet weather or early in the season when snowmelt is running, it can become rutted and slick. A high-clearance vehicle is strongly recommended; 4WD is useful if there’s been recent rain.
The loop is quiet — genuinely quiet, the kind where you park and hear only the wind and whatever birds are working the treeline. There are dispersed camping spots along the route if you want to break the day, and the views from the upper ridgeline across the Uinta Basin toward the Colorado Plateau are the kind that take a few seconds to properly take in.
Before you drive it: Check current road conditions with the Ashley National Forest Vernal Ranger District at fs.usda.gov/ashley or call the Vernal office.
Red Cloud Loop to Green River, WY
135 miles | ~2 hours 50 minutes US-191 N → UT-43 → I-80 W
After completing the loop, head back north on US-191 toward Vernal, then pick up UT-43 west toward Manila and the edge of Flaming Gorge Reservoir. If you have time and daylight, the overlooks above Flaming Gorge — particularly the one near the dam — are worth a 20-minute detour. The reservoir sits in a canyon of dark red rock, the water a deep teal that looks almost artificially vivid in afternoon light.
From Flaming Gorge, UT-43 runs north and connects back to I-80 at Green River, Wyoming.
Green River (population ~12,000) is a real town with a Walmart, multiple gas stations, and several decent motels. It sits at the confluence of the Green River and Ham’s Fork, and the rock formations above the town — called the Tollgate Rock and Castle Rock — are lit orange at dusk from your motel window if you pick the right direction.
Fuel up tonight. The next morning’s route through Bridger-Teton National Forest has long stretches with no services.
Day 2 driving summary: I-80 W across Wyoming → US-191 S into Utah → Red Cloud Loop → Flaming Gorge → I-80 W back into Wyoming → overnight Green River, WY
Day 3: Green River to Jackson, WY
232 miles | ~7.5 hours driving
The shortest day by miles is the richest by road. Day 3 puts you on the Greys River, in a canyon almost no one outside of Wyoming knows exists, and delivers you into Jackson from the south just as the Teton Range starts filling the windshield.
Green River to Greys River Road
116 miles | ~3 hours 50 minutes I-80 W → US-30 W → WY-240 → US-189 N → La Barge Creek Road/CR 315
From Green River, take I-80 west briefly, then exit onto US-30 west toward Kemmerer. This is coal and trona mining country — functional Wyoming, nothing scenic, but honest about what keeps the lights on in this part of the state. Kemmerer, if you’re passing through around opening time, has a JCPenney — the original one, the first store James Cash Penney opened in 1902, which is still operating.
From Kemmerer, WY-240 leads northeast to US-189 north. At La Barge, turn onto La Barge Creek Road (CR 315). The pavement ends within a few miles. This is your entrance into the Greys River drainage.
Greys River Road
~33 miles of canyon | ~2 hours Forest Service Road 10138 — two-lane gravel, high-clearance required
The Greys River Road follows the Greys River north through a narrow canyon in the Bridger-Teton National Forest. It’s graded gravel the whole way — driveable in a capable SUV, slow in anything lower. The road parallels the river so closely that in spring runoff you can hear the water from inside the car.
This is serious wildlife country. Moose are common along the river corridor, especially in the willows near the water. Elk use this drainage heavily in the fall. In summer, the canyon walls — streaked with dark limestone and covered in lodgepole pine — narrow and open in a rhythm that keeps the drive from ever feeling repetitive.
There’s no phone signal for most of this road. Download offline maps before you start, carry water, and make sure your spare tyre is inflated. The road is remote in a way that requires some preparation, not a lot of drama.
The north end of the Greys River Road exits onto US-89 near Alpine, Wyoming, where the Snake River Canyon begins.
Greys River Road to Jackson, WY
116 miles | ~3 hours 40 minutes US-89 N → US-26/89 N into Jackson
From Alpine, US-89 north follows the Snake River up through its canyon — a tighter, faster piece of road than anything you’ve driven today, with the river running grey-green below on your left. At Hoback Junction, you’re 13 miles from Jackson.
The Tetons appear gradually. They don’t announce themselves the way Yosemite does, with one sudden revelation. They build — a white jagged edge above the horizon that keeps getting larger as US-89 carries you north through the valley. By the time you reach the southern edge of Grand Teton National Park, they’re full-screen.
Drive north on US-191 into Jackson. The town square, with its four arched corners made of elk antlers, is about what you’d expect from a resort town that takes its Western mythology seriously. Get a burger at Million Dollar Cowboy Bar if it’s still early enough. Walk the boardwalk. You’ve earned it.
Day 3 driving summary: I-80 W → US-30 W through Kemmerer → WY-240 → US-189 → Greys River Road (gravel) → US-89 N through Snake River Canyon → Jackson
Arriving in Jackson: your first 24 hours
Jackson is a small town — around 10,000 full-time residents — that functions as the gateway to both Grand Teton National Park (20 minutes north) and Yellowstone National Park (90 minutes north). Neither requires you to rush. If you’ve driven this route over three days, you already know how to move at the right pace.
Grand Teton National Park
Entry fee: $35 per vehicle (7-day pass); covered by America the Beautiful Annual Pass.
The Teton Park Road runs 42 miles along the base of the range, with turnouts and short trails at regular intervals. Mormon Row, near Moose, is the most photographed spot in the park — two homestead barns with the Tetons directly behind them. It’s popular for good reason. The Oxbow Bend turnout on US-89 north of Moran Junction is where the dawn light on Mount Moran reflects in the still water of the Snake River, and it’s the kind of view that justifies the whole drive.
Where to eat in Jackson
The town has excellent food for its size. The Bunnery on Cache Street has been doing breakfast since 1975 — the O.S.M. pancakes (oats, sunflower, millet) are specific and worth the wait. The Rose on King Street is the best dinner option in town without the full resort-hotel premium. For a drink, the Silver Dollar Bar in the Wort Hotel has the original 1950 bar inlaid with 2,032 Morgan silver dollars, and pours a competent whiskey.
Where to stay in Jackson
Budget: Anvil Motel, downtown, walkable to everything. Mid-range: Wyoming Inn of Jackson Hole, clean and central. Splurge: Amangani, east of town on the bluff above the National Elk Refuge — views that justify the rate, barely.
Practical essentials
Vehicle requirements
A standard passenger car can complete Day 1. Days 2 and 3 require a high-clearance vehicle for the Red Cloud Loop and Greys River Road. 4WD is useful on both. Do not attempt either unpaved section in wet conditions without 4WD and good ground clearance.
Best time to travel
Late May to early June: Trail Ridge Road just opened, wildflowers in RMNP, fewer crowds, some mud possible on forest roads. July to August: Peak season. Everything is open. RMNP requires timed-entry reservations for the Bear Lake corridor (recreation.gov). Greys River and Red Cloud are at their best. September: The best month. Cooler temperatures, fall colour starting in the aspens, elk rut beginning in the Tetons and Greys River corridor. Still no snow on the passes. October onward: Trail Ridge Road closes. Red Cloud Loop and Greys River Road become unreliable. Do not attempt this itinerary after mid-October without checking every road condition individually.
Timed-entry reservations (RMNP)
Rocky Mountain National Park requires timed-entry reservations between late May and mid-October for the Bear Lake Road corridor and the Trail Ridge Road corridor. Book at recreation.gov. The reservations open 30 days in advance and sell out quickly for weekends. If you’re driving mid-week, they’re easier to obtain.
Fuel
- Fill up in Denver before leaving
- Green River, WY (end of Day 2) — last reliable fuel before the Greys River section
- Kemmerer, WY — fuel available
- Alpine, WY — fuel available where Greys River Road exits onto US-89
- Jackson, WY — fuel available, but prices are noticeably higher than the rest of the route
There are no fuel services on the Red Cloud Loop Road or the Greys River Road. A full tank at the start of each forest road section is not optional.
Road conditions
- Trail Ridge Road (RMNP): nps.gov/romo
- Red Cloud Loop (Ashley NF): fs.usda.gov/ashley / Vernal Ranger District: (435) 789-1181
- Greys River Road (Bridger-Teton NF): fs.usda.gov/btnf / Greys River Ranger District: (307) 886-5300
- Wyoming highway conditions: wyoroad.info
Frequently asked questions
How long does it take to drive from Denver to Jackson Hole? The most direct route (I-25 N to I-80 W) is approximately 560 miles and takes around 8.5 to 9 hours without extended stops. The scenic three-day route described here is approximately 1,066 miles and spreads the driving across three days of roughly 7–8 hours each.
What is the most scenic road between Denver and Jackson Hole? On this itinerary, Trail Ridge Road through Rocky Mountain National Park (Day 1) and the Greys River Road through Bridger-Teton National Forest (Day 3) are the two standout drives. The Cache La Poudre canyon on CO-14 is the best-kept secret of the three.
Is the drive from Denver to Jackson Hole worth it? If you have three days and a capable vehicle, yes. The route crosses four distinct landscapes — Rocky Mountain alpine, Colorado canyon, Utah red rock, and Wyoming river corridor — that a direct interstate route misses entirely.
When is Trail Ridge Road open? Trail Ridge Road in Rocky Mountain National Park typically opens in late May and closes in late October, depending on snowpack. Check current status at nps.gov/romo before travelling.
Do I need a 4WD vehicle for this route? A high-clearance vehicle (SUV or truck) is strongly recommended for Days 2 and 3. The Red Cloud Loop Scenic Backway and the Greys River Road are both maintained gravel and dirt roads that become difficult in wet conditions. A standard low-clearance passenger car is not suitable for these sections.
Is there cell service on Greys River Road? Minimal to none for most of the road. Download offline maps (Google Maps, Gaia GPS, or Maps.me all work) before you leave Green River. Carry water and know your spare tyre situation before you start.
What is the best time of year to make this drive? July through September is the safest window. September is arguably the best month: Trail Ridge Road is still open, fall colour is beginning in the aspens, crowds are thinning, and the elk rut is starting in the Greys River corridor and around Jackson.