Most people who drive from Michigan to Yellowstone take the straight shot: I-90 west, swap drivers somewhere in South Dakota, collect Mount Rushmore, keep moving. It works. It’s also the road-trip equivalent of eating a meal in a car park.
This route is different. Instead of cutting north-west into the Black Hills, it dips south through Colorado to pick up two of the country’s most underrated National Scenic Byways — the Pawnee Pioneer Trails and the Cache la Poudre–North Park corridor — before crossing the Continental Divide, swinging through Jackson Hole’s Gros Ventre wilderness, and finishing with the full Grand Teton Loop on the way into Yellowstone’s south entrance.
Total distance: approximately 2,140 miles (3,444 km) across five days of driving. The days are full but not punishing — most land between seven and eight hours of wheel time, with the final day a comfortable four and a half.
Route at a Glance
| Day | Leg | Miles / km | Drive time | Overnight |
|---|---|---|---|---|
| 1 | Detroit, MI → Williamsburg, IA | 506 mi / 815 km | ~8 hr | Williamsburg, IA |
| 2 | Williamsburg, IA → Paxton, NE | 532 mi / 856 km | ~8 hr | Paxton, NE |
| 3 | Pawnee Byway → Rocky Mountain NP → Cache la Poudre → Walden | 411 mi / 661 km | ~8 hr | Walden, CO |
| 4 | Cache la Poudre (finish) → Boulder, WY | 468 mi / 753 km | ~8 hr | Boulder, WY |
| 5 | Gros Ventre Loop → Grand Teton Loop → Yellowstone | 223 mi / 359 km | ~4.75 hr | Yellowstone NP |
Full interactive route map: View on MyScenicDrives
Route Highlights
- Pawnee Pioneer Trails Scenic & Historic Byway, Colorado
- Trail Ridge Road, Rocky Mountain National Park
- Cache la Poudre–North Park Scenic & Historic Byway, Colorado
- Gros Ventre Loop and the 1925 landslide site, Wyoming
- Grand Teton Loop, Grand Teton National Park
- Yellowstone National Park via the South Entrance
Passes and Fees: Sort This Before You Leave
Two national parks on this route charge entry fees. If you plan to visit both Rocky Mountain NP and Yellowstone (which you will), the America the Beautiful Annual Pass at $80 covers both. A single vehicle pass to either park alone is $35, so the maths favour the annual pass the moment you visit two parks in one trip.
Rocky Mountain National Park (Day 3): A timed-entry reservation is required between 9 am and 2 pm from late May through mid-October. Driving Trail Ridge Road on this schedule means you must book via Recreation.gov before you leave home — slots release months in advance and sell out fast. The easy workaround: arrive at the entrance gate before 9 am, when no reservation is needed, or after 2 pm. Summer thunderstorms typically clear by mid-afternoon, so a post-2 pm entry actually gives you cleaner skies and emptier trails.
Yellowstone (Day 5): No timed-entry permit or advance reservation is required to enter. Buy your pass online at Recreation.gov before arrival to skip entrance queues. Arrive before 8 am at popular sites such as Old Faithful and Grand Prismatic Spring — parking fills early and stays full until evening.
Grand Teton National Park (Day 5): Covered by the America the Beautiful pass or a separate $35 vehicle fee. The Inner Park Loop Road is open to cars from 1 May through 31 October only — plan around this if travelling outside those dates.
Day 1: Detroit, MI to Williamsburg, IA — 506 miles (815 km)
The route leaves Detroit heading west on I-96, then picks up M-14 toward Ann Arbor before joining I-80 west. You cross into Central Time crossing from Michigan into Indiana — set your clock back an hour and watch the odometer instead of the clock for the first few hours.
Most of Day 1 is honest interstate driving across the upper Midwest. The landscape transitions from Michigan’s flat agricultural plains through Chicago’s outer suburbs and into the rolling hills of Iowa. This is a day to make miles, not memories — but there are a few things worth knowing.
One stop worth making: Iowa 80
Just outside Walcott, Iowa — about 290 miles (467 km) from Detroit — you’ll pass Iowa 80, billed as the world’s largest truck stop. It sounds gimmicky but it’s genuinely useful: full-service mechanics, a trucking museum, a barber, a dentist, and a restaurant that seats 300. If you’re driving solo, this is also a good alert-check: if you’re fatigued here you still have two hours to Williamsburg. Stop, eat something hot, walk a circuit of the car park.
Williamsburg is a small Iowa town with good interstate access and several mid-range hotels. Aim to arrive before 8 pm so you eat something before bed — Day 2 starts early.
Day 2: Williamsburg, IA to Paxton, NE — 532 miles (856 km)
Day 2 continues west on I-80. You’ll cross into the Mountain Time zone somewhere in western Nebraska — another hour lost, so factor that into your plan. This is the stretch most people regard as scenery-free suffering. It isn’t, if you know what you’re looking at.
The Nebraska Sandhills begin appearing roughly 200 miles (322 km) west of Omaha: vast wind-formed grass dunes, the largest stabilised dune system in the western hemisphere, hiding one of the largest groundwater reservoirs in North America beneath them. You won’t see that from the interstate, but the skyline changes texture — broader, more open, harder to categorise than the flat corn belt behind you.
Kearney, NE: the Great Platte River Road Archway
At exit 272 near Kearney, the Great Platte River Road Archway straddles the interstate — a museum literally spanning I-80 that chronicles westward migration along the Platte River corridor. Pioneers, Pony Express riders, transcontinental telegraph, and the railroad all used this same corridor. It’s $14 per adult, takes 45 minutes, and reframes the next 300 miles of driving. Worth the stop.
Overnight: Paxton, NE — and Ole’s
Paxton, Nebraska barely qualifies as a town (population around 500), but it’s home to one of the great roadside institutions of the American West: Ole’s Big Game Steakhouse & Lounge. Ole Herstedt spent 40 years hunting across five continents and mounted 200 trophies on the walls of his bar. It opened in 1933 and hasn’t lost much of its original character. Order the prime rib, drink something local, and accept that you’re in a place that tourist guides largely ignore. Book a room at the Budget Host Rodeway Inn nearby — limited options in Paxton, and it fills up in summer.
Day 3: Pawnee Pioneer Trails → Rocky Mountain NP → Cache la Poudre → Walden — 411 miles (661 km)
This is the hardest day to manage logistically and the most visually rewarding. You’re threading three distinct landscapes — shortgrass prairie, tundra ridge road, and river canyon — into a single day. The key is sequencing: get to the Pawnee byway early, cross Rocky Mountain NP before lunchtime, and ride Cache la Poudre into Walden as the afternoon light hits the canyon walls.
Pawnee Pioneer Trails Scenic Byway: 128 miles (206 km)
The byway begins in the town of Ault, about 30 minutes north-east of Denver, and runs east along Colorado Highway 14 into the Pawnee National Grassland before looping back through the small towns of Briggsdale, Grover, and Raymer.
Most road-trip blogs describe this byway in a paragraph and move on. That’s a mistake, because what’s happening geologically underfoot is extraordinary: you’re driving across the Colorado Piedmont, a landscape shaped over five million years by the South Platte River carving through 100 million years of sedimentary deposits. The result is one of the last intact shortgrass prairies in the United States, home to over 750 species of plants and animals, including pronghorn antelope — the fastest land animal in the western hemisphere — coyotes, prairie dogs, and more than 400 bird species. Birders, bring binoculars: the Pawnee National Grassland Bird Tour departs from Crow Valley Recreation Area in Briggsdale and follows a self-guided 21-mile route through multiple habitats.
The centrepiece of the byway is the Pawnee Buttes — two sandstone mesas rising 250 feet (76 m) from the surrounding plain near Grover. From a distance they look improbable, like something lifted from another landscape and dropped here by mistake. A 1.5-mile hiking trail from the Pawnee Buttes Trailhead leads to their base. Photographers: dawn and dusk light on the buttes is exceptional.
Practical notes: Fill your tank before leaving Ault — services are sparse throughout the byway. Some sections use gravel roads. After heavy rain or snow, call the Pawnee District office at 970-346-5000 for current conditions before leaving. An America the Beautiful Pass does not cover the Pawnee National Grassland.
Rocky Mountain National Park: Trail Ridge Road — 46 miles (74 km) through the park
After the byway, the route heads to Rocky Mountain National Park via Estes Park. You’ll enter on US-34 (Fall River Road) and cross the park on Trail Ridge Road — at 12,183 feet (3,713 m), the highest continuous paved road in the United States.
Eleven miles of Trail Ridge Road sit above 11,500 feet (3,505 m). The road has no guardrails and no shoulders. Weather changes without warning: warm mornings routinely turn into snow squalls above the treeline by early afternoon. The Alpine Visitor Center at 11,796 feet is the highest visitor centre in the National Park Service and makes a good turnaround point if conditions worsen. Call the Trail Ridge Road status line at 970-586-1222 before arrival — the recording updates whenever conditions change. The road typically opens for the season in late May and closes in mid-October.
Trail Ridge Road exits into Grand Lake on the park’s west side. Head south on US-40 then north on CO-125 to reach Walden and the start of the Cache la Poudre byway’s western terminus.
Permit reminder: Between late May and mid-October, a timed-entry reservation from Recreation.gov is required to drive Trail Ridge Road between 9 am and 2 pm. No reservation is needed before 9 am or after 2 pm. Book as early as possible — these sell out months ahead.
Cache la Poudre–North Park Scenic Byway: 101 miles (163 km)
Pick up the Cache la Poudre byway at its western terminus in Walden, following Colorado Highway 14 east through the Roosevelt National Forest to Fort Collins. On this route, you’re driving it west-to-east — from the open ranchland of North Park down through the canyon — so you get the dramatic reveal of the Poudre canyon rather than climbing into it.
The byway follows the Cache la Poudre River, Colorado’s only federally designated Wild and Scenic River. The name translates from French as “hide the powder” — fur trappers in the 1820s buried gunpowder along the river banks during a blizzard to lighten their load for the mountain crossing.
Two things to know before you drive it:
- Last fuel before a 45-mile gap: The junction known locally as “Ted’s Place” (where US-287 meets CO-14, just north of Fort Collins) is the last petrol station before a long stretch with nothing. Coming from Walden, you pass through this stretch in reverse — fill up in Walden before you start.
- Moose corridor: The highest concentration of moose on the byway is between Walden and Gould. Drive slowly in this section, especially at dawn and dusk. Moose are large enough to total a vehicle on impact and move unpredictably.
Key stops include Cameron Pass at 10,276 feet (3,132 m), where the road crests between Larimer and Jackson Counties. The views across to the Nokhu Crags in the Never Summer Mountains are outstanding. West of the pass, the Colorado State Forest State Park Moose Visitor Center has the best educational stop on the entire byway. Further east, Poudre Falls — a roadside waterfall tucked into a canyon carved by the river — is easy to miss; watch for the signed pull-out about 16 miles past Rustic on the west side of CO-14.
Overnight in Walden, CO. The North Park Inn is a reliable base; for something local, the River Rock Cafe in town is the best dinner option.
Day 4: Fort Collins, CO to Boulder, WY — 468 miles (753 km)
After completing the Cache la Poudre byway, the route turns north on I-25 toward Cheyenne, then swings west across Wyoming on I-80 before heading north on US-191 toward Jackson Hole. This is another distance day — nearly eight hours — but Wyoming’s terrain shifts dramatically as you push north of Rock Springs. The Green River basin gives way to increasingly broken landscape, and the Wind River Range appears on the western horizon in the late afternoon.
Boulder, Wyoming is a small service town on US-191 south of Pinedale — well-placed for the Day 5 drive into Jackson. Limited but adequate accommodation; fill up with fuel here as the next reliable services are in Jackson.
Day 5: Gros Ventre Loop → Grand Teton Loop → Yellowstone — 223 miles (359 km)
Day 5 is the payoff. The driving is short — just under five hours total — which means you can spend proper time at each stop rather than treating them as checkboxes.
The Gros Ventre Loop and the landslide that destroyed a town
Before entering Grand Teton National Park, take the Gros Ventre Road east from the town of Kelly into the Gros Ventre Mountains. The road has no guardrails and the surface turns to dirt after the first few miles — drive carefully and keep speed down.
What you’re coming to see is one of the largest documented landslides in recorded North American history. On 23 June 1925, following weeks of heavy rain and snowmelt — and likely triggered by an earthquake estimated at magnitude 3–4 the previous evening — the entire north face of Sheep Mountain let loose. An estimated 50 million cubic yards (38 million cubic metres) of rock hurtled down the mountainside at roughly 50 mph (80 km/h), crossed the Gros Ventre River, and rode 300 feet (91 m) up the opposite slope. The entire event lasted only seconds. A local rancher, Guil Huff, was riding along the river when he heard the roar and escaped the wall of flying debris on horseback by approximately 20 feet (6 m).
The landslide formed a natural earthen dam across the Gros Ventre River, backing up water to create Lower Slide Lake — five miles (8 km) long and up to 200 feet (61 m) deep. Two years later, on 18 May 1927, snowmelt overwhelmed the porous dam and it partially failed. A flood six feet (1.8 m) deep roared 25 miles (40 km) downstream. The town of Kelly, 4 miles (6.4 km) below the dam, was wiped out. Six people died. The school, church, and parsonage survived; everything else was destroyed.
The landslide scar is still visible across the valley as you drive in — a pale grey gouge against the surrounding forest, partially revegetated but unmistakable. A self-guided interpretive trail at the geological area explains both the 1925 slide and the 1927 flood, and includes exhibits produced by Kelly Elementary School students for the centenary of the event. Lower Slide Lake, visible from the road, still holds a cemetery of standing dead trees in its shallower sections — a ghostly marker of the original valley floor.
Insider tip: The Forest Service designated the Gros Ventre Slide Geological Area in 1962. The 100th anniversary of the slide fell on 23 June 2025, and the USGS published a detailed geological retrospective explaining the exact failure mechanism. If you want to understand what happened before you walk the trail, it’s worth reading in the car.
Grand Teton National Park: the Inner Park Loop Road
Re-enter the valley via the Gros Ventre Road junction and head north into Grand Teton National Park on the Teton Park Road — the Inner Park Loop. When the road was redesigned in the 1980s and 1990s, the engineers’ brief was explicitly to maximise the visual experience for drivers and passengers. The result is one of the finest scenic drives on the continent: a mostly flat road past South Jenny Lake and North Jenny Lake, String Lake, the Cathedral Group viewpoint (the closest the road comes to the Cathedral Group of peaks — Grand Teton, Mount Owen, and Teewinot Mountain), and Signal Mountain.
The Inner Park Loop Road is open to cars from 1 May to 31 October only. Outside those dates, you’ll need to route around via US-89/191. Jenny Lake has limited parking that fills early — arrive before 9 am for a trailhead spot, or use the Jenny Lake Shuttle to reach the western shore without the parking headache.
Into Yellowstone via the South Entrance
From Grand Teton, continue north on US-89/191 through the park to the South Entrance of Yellowstone National Park. The south entrance is the right choice arriving from Jackson — it puts you on the western arm of Yellowstone’s figure-eight road system, moving toward Old Faithful within the first hour.
As of 2026, no timed-entry permit is required for Yellowstone. The entrance fee is $35 per vehicle (7-day pass). If you purchased an America the Beautiful pass for Rocky Mountain NP on Day 3, it covers Yellowstone entry.
Your First Day in Yellowstone: Where to Actually Go
Yellowstone is 3,472 square miles (8,991 km²). The road system forms a figure-eight, and the temptation on arrival is to drive aimlessly and stop at whatever looks significant. Instead, build your first day around three zones.
Old Faithful and the Upper Geyser Basin
Old Faithful erupts approximately every 90 minutes and reaches heights between 106 and 185 feet (32–56 m). More interesting than Old Faithful itself is the Upper Geyser Basin surrounding it — the world’s highest concentration of geysers within a small area. The 1.5-mile boardwalk loop past Beehive Geyser, Castle Geyser, and Morning Glory Pool rewards an early arrival before tour groups arrive.
Grand Prismatic Spring
The Grand Prismatic Spring — the largest hot spring in the United States at 370 feet (113 m) in diameter — produces its iconic rainbow colouration from heat-tolerant bacteria that arrange themselves in concentric bands around the superheated centre. The viewpoint from the main boardwalk gives you proximity but not perspective. For the elevated view that most photos show, walk the Fairy Falls Trail (approximately 1.6 miles / 2.6 km each way from the trailhead on Fountain Flat Drive) to the overlook. The aerial view of the spring from the hillside is categorically different from the boardwalk view below.
Lamar Valley for wildlife
Lamar Valley, on the park’s north-east road, is the best wildlife-watching location in Yellowstone — and one of the best in North America. Bison herds are reliably present throughout the year. Wolves, reintroduced in 1995, have established multiple packs whose territories overlap the valley; early morning is the optimal viewing time. Bring binoculars or a spotting scope: the distances involved are large. Plan a dawn departure if you want a serious shot at seeing wolves.
Practical Notes for the Whole Trip
Accommodation booking lead times
Yellowstone lodges and campgrounds operated by Xanterra open for reservations in May of the preceding year. Old Faithful Inn and Old Faithful Lodge — the two properties closest to the geyser — book out within days of opening. If you want to stay inside the park (strongly recommended for a first visit), set a calendar reminder for the previous May 1 and be at your keyboard at 7 am Mountain Time when reservations open. Alternatives outside the park in West Yellowstone, Gardiner, and Cody fill nearly as fast.
Gas stops on the Great Plains
Days 2 and 4 cross long stretches of Wyoming and Nebraska with thin service coverage. Fill up whenever you’re below half a tank. The critical gaps on this route are the stretch between Green River and Pinedale on US-191 (approximately 75 miles / 121 km with no services) and the Cache la Poudre byway between Walden and Fort Collins (fill in Walden). Check GasBuddy for current prices along your planned route — Wyoming fuel is typically cheaper than Colorado’s.
Altitude adjustment
Days 3 through 5 involve significant elevation. Trail Ridge Road peaks at 12,183 feet (3,713 m); Cameron Pass hits 10,276 feet (3,132 m); Yellowstone’s plateau averages around 7,500 feet (2,286 m). If you’re driving from sea-level Michigan, your body won’t have acclimatised. Headaches, fatigue, and shortness of breath are normal at these elevations; nausea is a sign to descend. Drink water consistently from Day 3 onwards, avoid alcohol the first night at altitude, and don’t rush high-elevation hikes.
Best time of year
Late June through early September gives you the highest probability of Trail Ridge Road being fully open (it typically opens in late May and closes mid-October) and Grand Teton’s Inner Park Loop being accessible. September is the strongest overall pick: the elk rut begins, aspen groves go gold across Wyoming, crowds thin after Labor Day, and afternoon thunderstorms are less frequent. July and August are fully operational but significantly more crowded at Rocky Mountain NP and Yellowstone. Avoid this route before late May — Trail Ridge Road will likely be closed.
RV considerations
An RV trip is entirely viable on this route. Note that Trail Ridge Road has a vehicle length limit of 35 feet (10.7 m) for vehicles pulling trailers, and vehicles over 20 feet (6.1 m) should avoid the Gros Ventre Road entirely (no guardrails, narrow surface, potential washboard). Plan your Yellowstone campground reservations six months in advance — full hook-up sites at Fishing Bridge RV Park book out well ahead of the season.
Frequently Asked Questions
How far is it from Detroit to Yellowstone?
On this scenic byway route, the total distance is approximately 2,140 miles (3,444 km). A direct interstate route would be closer to 1,650 miles (2,655 km) — the extra distance comes from the Colorado detour to pick up the Pawnee and Cache la Poudre byways.
Can I do this trip in fewer than 5 days?
You can compress it to four days by combining Day 3 and Day 4 into a single long driving day, but you’d be sacrificing real time on the Pawnee and Cache la Poudre byways. The five-day structure allows you to actually stop and walk the trails rather than drive past them.
Do I need a permit or reservation for Yellowstone?
As of 2026, no timed-entry permit is required for Yellowstone. However, you do need a valid park pass or entrance fee ($35 per vehicle for a 7-day pass). Pre-purchase on Recreation.gov to skip the gate queue.
What is the best time of year for this route?
Late June through early October. September is the optimal month: fall colour, elk rut, thinner crowds, and all roads open. Avoid before late May due to Trail Ridge Road and Teton Park Road closure.
Is the Gros Ventre Road suitable for all vehicles?
The first section to Kelly and the landslide viewpoint is paved and manageable in a standard saloon car. The road beyond Kelly turns to gravel with no guardrails — a high-clearance vehicle is recommended if you plan to continue deeper into the mountains. Check current conditions with the Bridger-Teton National Forest before arrival.