Origin
Bar Nunn, WY
Morning in Bar Nunn on Saturday
Local time
8:26 AM
MDT
Current temp
72°F
Unavailable
Live forecast
Trip from Bar Nunn, WY to Riverton, WY
Compiled and reviewed by the Trip.ovh planning team at COD Solutions Oy · Last reviewed Apr 18, 2026 · Editorial standards
Drive Time
2h 21m
Distance
122.3 mi
197 km
Drive Score
9/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$19
one way
EV Charging
Unknown
Best Time to Leave
4 AM
2h 11m
★
6 AM
2h 21m
8 AM
2h 40m
10 AM
2h 28m
12 PM
2h 26m
3 PM
2h 29m
5 PM
2h 39m
8 PM
2h 15m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Bar Nunn, WY
Valeria Boltneva
Riverton, WY
Wikimedia Commons
Trip Overview
The drive from Bar Nunn, WY to Riverton, WY covers 122.3 miles and takes about 2h 21m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on West Yellowstone Highway, US 26, US 20 for much of the mileage, and the overall profile is turn-heavy local drive. The longest uninterrupted segment is about 94.3 miles on West Yellowstone Highway. At current regular gas prices, budget about $19.38 one way before food or hotel costs.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
61.2 miles from Bar Nunn, WY
A natural place for your longest stop of the day , about 1h 11m into the drive .
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 2h 21m. Total distance: 122.3 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
2h 21m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (21%). Straightforward navigation.
Scenic Drive
Turn-heavy local drive route profile.
Drive Character
Expect a 2h 21m drive with frequent turns across 122.3 miles of local and secondary roads.
This route has more turning and local-road decision points than a simple highway run.
There are about 12 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
West Yellowstone Highway is the longest continuous segment at about 94.3 miles.
How Hard Is This Drive?
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. There are only a few real navigation decisions along the way. The trickiest moment comes around 0.3 miles in near Salt Creek Highway.
Driving Effort
3/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
This is a straightforward 2h 21m drive. You will face about 8 decision points, but nothing that requires special attention if you follow navigation.
Where does it get tricky?
The main spots that need attention: at 0.3 miles (Salt Creek Highway): Navigation decision point; at 1.3 miles (WY 254 / Howard Street): Navigation decision point; at 1.4 miles: Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 8 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
5
0.3 mi into trip
|
~0m in
|
Salt Creek Highway
At end of road, turn right onto Salt Creek Highway
Navigation decision point
4
1.3 mi into trip
|
~2m in
|
WY 254 / Howard Street
Turn left onto WY 254 / Howard Street
Navigation decision point
5
1.4 mi into trip
|
~2m in
Take the ramp toward I 25 South, US 87 South: Casper
Multiple destination signs - pick the right one
Toward I 25 South, US 87 South: Casper
5
3.2 mi into trip
|
~5m in
Take the exit toward US 20 West, US 26 West, WY 220 West: Shoshoni, Port of Entry
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward US 20 West, US 26 West, WY 220 West: Sho...
4
3.6 mi into trip
|
~5m in
Keep slight left at fork
Highway fork - watch signs carefully
Main Roads
| Road | Distance | Duration |
|---|---|---|
| West Yellowstone Highway | 94.3 mi | 1h 47m |
| US 26 | 21.6 mi | 24m |
| US 20 | 2.7 mi | 3m |
| I 25 | 1.4 mi | 1m |
| Salt Creek Highway | 1.1 mi | 1m |
| Sunset Boulevard | 0.3 mi | <1m |
| Howard Street | 0.1 mi | <1m |
| North Federal Boulevard | — | — |
Some road-level metrics are being recalculated.
Longest stretch:
West Yellowstone Highway
— 94.3 mi, about 1h 47m
Turn-by-Turn Driving Directions
Step-by-step road directions between Bar Nunn, WY and Riverton, WY.
1
Start on Sunset Boulevard
0.3 mi
·
39 sec
·
Sunset Boulevard
2
At end of road, turn right onto Salt Creek Highway
1.1 mi
·
1 min
·
Salt Creek Highway
3
Turn left onto WY 254
0.1 mi
·
12 sec
·
Howard Street
4
Take the ramp
0.4 mi
·
48 sec
Toward I 25 South, US 87 South: Casper
5
Merge onto I 25; US 87
1.4 mi
·
1 min
·
I 25; US 87
6
Take the exit
0.3 mi
·
42 sec
Toward US 20 West, US 26 West, WY 220 West: Shoshoni, Port of Entry
7
Keep slight left at fork
0.1 mi
·
17 sec
8
Turn right onto US 20; US 26
2.7 mi
·
3 min
·
US 20; US 26
9
Turn right onto US 20; US 26
94 mi
·
1 hr 47 min
·
West Yellowstone Highway
10
Continue on US 26; WY 789
18 mi
·
20 min
·
US 26; WY 789
11
Continue on US 26; WY 789
3.9 mi
·
4 min
·
US 26; WY 789
Use the straight lane.
12
Arrive at destination
US 26; WY 789
Trip Plan
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
You can normally do this drive in one day.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 61.2 miles from Bar Nunn, WY, or about 1h 11m into the drive.
The longest continuous stretch on this route runs about 94.3 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 27 miles or 32m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 61.2 miles or 1h 11m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 1h 55m
Traffic, exits, and arrival timing usually matter more near Riverton, WY than in the middle of the route.
Before You Leave
+
Open the route before leaving Bar Nunn, WY so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Bar Nunn, WY
This is one driving day of about 122.3 miles and 2h 21m.
Your first comfortable stop window is around 27 miles from Bar Nunn, WY.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on West Yellowstone Highway for about 94.3 miles.
Fuel & Cost
Regular Gas
$19.38 one way
$38.76 round trip
$4.03/gal
25.4 MPG avg
43 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.22 | $20.31 | $40.63 |
| premium | $4.53 | $21.82 | $43.63 |
| diesel | $5.61 | $27.00 | $54.00 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$19
Meals
$25–$50
Total
$44–$69
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 42.8 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $13 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 36.7 | 0 | $12.84 | $5.87 |
| Efficient EV | 30.6 | 0 | $10.70 | $4.89 |
| EV Truck/SUV | 48.9 | 0 | $17.12 | $7.83 |
Gas CO2
43 kg
EV CO2
14 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Destination
Riverton, WY
Morning in Riverton on Saturday
Local time
8:26 AM
MDT
Current temp
75°F
Unavailable
Live forecast
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
3 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
2h 21m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from Bar Nunn, WY to Riverton, WY covers 122.3 miles and takes about 2h 21m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are West Yellowstone Highway, US 26, US 20. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 61.2 miles from Bar Nunn, WY. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $19.38 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Leave by 9 AM and you'll arrive before lunch. Even a 4 PM departure gets you there before dark in summer.
This is a straightforward 2h 21m drive. You will face about 8 decision points, but nothing that requires special attention if you follow navigation.
The main spots that need attention: at 0.3 miles (Salt Creek Highway): Navigation decision point; at 1.3 miles (WY 254 / Howard Street): Navigation decision point; at 1.4 miles: Multiple destination signs - pick the right one.
The route from Bar Nunn, WY to Riverton, WY does not surface many named destination signs beyond the main corridor.
How this page is built
Compiled by the Trip.ovh planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, and EIA for fuel prices. See our methodology for refresh cadence and limitations.
Was this helpful?
Thanks for your feedback!
Your tip has been submitted. Thanks!
/500
Recent Tips
·
Explore More
Continue From Riverton, WY
More from Bar Nunn, WY
More trips to Riverton, WY
Explore more options from Bar Nunn, WY or browse trips ending in Riverton, WY.
Looking for more statewide routes? Browse WY road trips.