Origin
Casper, WY
Morning in Casper on Saturday
Local time
11:57 AM
MDT
Current temp
44°F
Unavailable
Live forecast
Trip from Casper, WY to Fort Washakie, WY
Compiled and reviewed by the Trip.ovh planning team at COD Solutions Oy · Last reviewed Apr 18, 2026 · Editorial standards
Drive Time
3h 7m
Distance
155 mi
249 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$25
one way
EV Charging
Unknown
Best Time to Leave
4 AM
2h 56m
★
6 AM
3h 7m
8 AM
3h 30m
10 AM
3h 15m
12 PM
3h 13m
3 PM
3h 17m
5 PM
3h 29m
8 PM
3h 0m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Casper, WY
Taryn Elliott
Fort Washakie, WY
Tom Fisk
Trip Overview
The drive from Casper, WY to Fort Washakie, WY covers 155 miles and takes about 3h 7m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on East Sunlight Drive, Bryan Stock Trail, East F Street for much of the mileage, and the overall profile is mostly surface roads. At current regular gas prices, budget about $24.56 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.
Break Rhythm
1 planned break
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
77.5 miles from Casper, WY
A natural place for your longest stop of the day , about 1h 33m into the drive .
Main Roads
| Road | Distance | Duration |
|---|---|---|
| East Sunlight Drive | — | — |
| Bryan Stock Trail | — | — |
| East F Street | — | — |
| US 20 West | — | — |
| West Yellowstone Highway | — | — |
| Rendezvous Road | — | — |
| 17 Mile Road | — | — |
| Blue Sky Highway | — | — |
Some road-level metrics are being recalculated.
Longest stretch:
East Sunlight Drive
— detailed segment metrics are refreshing.
Turn-by-Turn Driving Directions
Step-by-step road directions between Casper, WY and Fort Washakie, WY.
1
Start on North Sunlight Drive
0.3 mi
·
1 min
·
North Sunlight Drive
2
Turn right
0.1 mi
·
34 sec
3
Turn right onto East Sunlight Drive
0.5 mi
·
2 min
·
East Sunlight Drive
4
At the end of the road, turn right onto Bryan Stock Trail
1.1 mi
·
1 min
·
Bryan Stock Trail
5
Turn right onto East F Street
0.2 mi
·
16 sec
·
East F Street
6
Take the ramp straight
2.1 mi
·
2 min
7
Take the exit slight right toward US 20 West, US 26 West, WY 220 West: Shoshoni, Port of Entry
0.3 mi
·
45 sec
·
US 20 West, US 26 West, WY 220 West: Shoshoni, Port of Entry
8
Keep slight left
351 ft
·
11 sec
9
Turn left
3.0 mi
·
3 min
10
Turn right onto West Yellowstone Highway
94 mi
·
1 hr 47 min
·
West Yellowstone Highway
11
Continue straight
18 mi
·
20 min
12
Continue straight
5.6 mi
·
6 min
13
Turn right onto Rendezvous Road
2.9 mi
·
3 min
·
Rendezvous Road
14
Continue on 17 Mile Road
18 mi
·
20 min
·
17 Mile Road
15
At the end of the road, turn right onto Blue Sky Highway
2.1 mi
·
3 min
·
Blue Sky Highway
16
Turn left onto Ethete Road
5.6 mi
·
9 min
·
Ethete Road
17
Turn right
0.9 mi
·
1 min
18
Turn left onto North Fork Road
449 ft
·
20 sec
·
North Fork Road
19
Turn right onto Black Coal Drive
0.2 mi
·
46 sec
·
Black Coal Drive
20
Turn right onto 2nd Street
26 ft
·
1 sec
·
2nd Street
21
Arrive at your destination
Trip Plan
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 77.5 miles from Casper, WY, or about 1h 33m into the drive.
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 34 miles or 41m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 77.5 miles or 1h 33m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 2h 33m
Traffic, exits, and arrival timing usually matter more near Fort Washakie, WY than in the middle of the route.
Before You Leave
+
Open the route before leaving Casper, 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 Casper, WY
This is one driving day of about 155 miles and 3h 7m.
Your first comfortable stop window is around 34 miles from Casper, WY.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Meal stop
78 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
Pacing Suggestions
Fuel and coffee
A short stop after about 34 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 77.5 miles from Casper, WY, which is a good place for a longer meal and fuel stop.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Fuel & Cost
Regular Gas
$24.56 one way
$49.12 round trip
$4.03/gal
25.4 MPG avg
54 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.22 | $25.75 | $51.49 |
| premium | $4.53 | $27.65 | $55.30 |
| diesel | $5.61 | $34.22 | $68.44 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$25
Meals
$25–$50
Total
$50–$75
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 54.2 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $16 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 46.5 | 0 | $16.28 | $7.44 |
| Efficient EV | 38.8 | 0 | $13.56 | $6.20 |
| EV Truck/SUV | 62 | 0 | $21.70 | $9.92 |
Gas CO2
54 kg
EV CO2
18 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
Fort Washakie, WY
Morning in Fort Washakie on Saturday
Local time
11:57 AM
MDT
Current temp
70°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
26 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
3h 7m 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.
What kind of drive is this?
155 mi in 3h 7m across surface roads — expect steady turns and local traffic rather than long highway runs.
Only 0% highway — the rest is turn-by-turn surface driving.
21 navigation steps total — most of the decisions cluster near the start and finish.
Main road: East Sunlight Drive.
How Hard Is This Drive?
1/10
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. Navigation is very simple - set it and forget it for most of the drive.
Driving Effort
1/10
Very easy - short and simple to drive
Balances navigation complexity with total wheel time.
The drive from Casper, WY to Fort Washakie, WY is easy. At 3h 7m with 0% highway, most drivers will find it relaxed and low-stress.
Where does it get tricky?
This route does not have any notably tricky sections. Most of the drive from Casper, WY to Fort Washakie, WY is straightforward, with well-signed roads and simple exits.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 3h 7m. Total distance: 155 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
3h 7m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (0%). Straightforward navigation.
Scenic Drive
Mostly surface roads route profile.
Frequently Asked Questions
We did not find dedicated rest areas on this route. For a drive this long, plan bathroom and stretch breaks around gas stations, fast-food stops, or small-town downtowns — check the Nearby Places section for options.
Yes, with realistic expectations. Build in a stop roughly every 2 hours, have snacks and activities ready, and check the Nearby Places tabs for kid-friendly stops along the way.
Mostly yes along the main roads, but rural stretches through WY can have sparse or no coverage. Before you leave, download offline Google Maps or Apple Maps for the route, and consider downloading music or podcasts instead of streaming. If you depend on data for navigation, keep a paper backup of the turn-by-turn directions.
This route does not have any notably tricky sections. Most of the drive from Casper, WY to Fort Washakie, WY is straightforward, with well-signed roads and simple exits.
Possible but tiring. At 3.1 hours each way, an in-and-out day trip would put you behind the wheel for 6.2 hours — manageable with a long break at Fort Washakie, WY, but most travelers stay overnight.
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.
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