Origin
Midwest, WY
Night in Midwest on Saturday
Local time
10:17 PM
MDT
Current temp
72°F
Unavailable
Live forecast
Trip from Midwest, WY to Mills, WY
Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 19, 2026 · Editorial standards
Drive Time
48m
Distance
42.3 mi
68 km
Drive Score
6/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$7
one way
EV Charging
Unknown
Best Time to Leave
4 AM
0h 45m
★
6 AM
0h 49m
8 AM
0h 57m
10 AM
0h 52m
12 PM
0h 51m
3 PM
0h 52m
5 PM
0h 56m
8 PM
0h 46m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Mills, WY
Dan Stone
Trip Overview
Midwest, WY to Mills, WY is 42.3 miles and takes about 48m via I 25 and WY 259, with a fuel budget near $7 and enough daylight to finish in a day. This short trip stays within the Mountain West region, specifically within Wyoming. Expect a straightforward drive focused primarily on highway travel, making it a convenient option for connecting these two points. It's a quick transit that doesn't require extensive planning, ideal for a day trip or as a connecting leg to a larger adventure.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| I 25 | 20.1 mi | 18m |
| WY 259 | 18.1 mi | 20m |
| Salt Creek Highway | 1.5 mi | 2m |
| Lewis Street | 0.5 mi | 1m |
| US 20 | 0.3 mi | <1m |
| 1st Street | 0.3 mi | <1m |
| Van Horn Avenue | 0.2 mi | <1m |
| West Yellowstone Highway | <0.1 mi | <1m |
Longest stretch:
I 25
— 20.1 mi, about 18m
Turn-by-Turn Driving Directions
Step-by-step road directions between Midwest, WY and Mills, WY.
1
Start on Fitzhugh Avenue
66 ft
·
7 sec
·
Fitzhugh Avenue
2
Turn left onto Lewis Street
0.5 mi
·
1 min
·
Lewis Street
3
Turn right onto WY 259
18 mi
·
20 min
·
WY 259
4
Take the exit
0.4 mi
·
52 sec
Toward I 25 South: Casper
5
Merge onto I 25; US 87
20 mi
·
18 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
0.3 mi
·
23 sec
·
US 20; US 26
9
Take the exit
0.3 mi
·
43 sec
Toward Salt Creek Road, Port of Entry
10
Turn left onto WY 254
1.5 mi
·
2 min
·
Salt Creek Highway
11
At end of road, turn left onto US 20 Business; US 26 Business
247 ft
·
5 sec
·
West Yellowstone Highway
12
Turn right onto Van Horn Avenue
0.2 mi
·
28 sec
·
Van Horn Avenue
13
Continue on 1st Street
0.3 mi
·
45 sec
·
1st Street
14
Arrive at destination
1st Street
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Meal stop
21 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 42 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 21.1 miles from Midwest, 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.
Heads-up: tricky spots
5 of 115 decision points cluster between mile 0 and 41.7 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
4
0 mi into trip
|
~0m in
|
Lewis Street
Turn left onto Lewis Street
Navigation decision point
6
18.6 mi into trip
|
~22m in
Take the exit toward I 25 South: Casper
Exit ramp - move to the correct lane early
Toward I 25 South: Casper
5
39.2 mi into trip
|
~42m 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...
5
40 mi into trip
|
~44m in
Take the exit toward Salt Creek Road, Port of Entry
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward Salt Creek Road, Port of Entry
5
41.7 mi into trip
|
~47m in
|
US 20 Business; US 26 Business / West Yellowstone Highway
At end of road, turn left onto US 20 Business; US 26 Business / West Yellowstone Highway
Navigation decision point
Fuel & Cost
Regular Gas
$6.70 one way
$13.41 round trip
$4.03/gal
25.4 MPG avg
15 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.22 | $7.03 | $14.05 |
| premium | $4.53 | $7.55 | $15.09 |
| diesel | $5.61 | $9.34 | $18.68 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$7
Estimated CO2 emission: 14.8 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $4 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 12.7 | 0 | $4.44 | $2.03 |
| Efficient EV | 10.6 | 0 | $3.70 | $1.69 |
| EV Truck/SUV | 16.9 | 0 | $5.92 | $2.71 |
Gas CO2
15 kg
EV CO2
5 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
Mills, WY
Night in Mills on Saturday
Local time
10:17 PM
MDT
Current temp
45°F
Unavailable
Live forecast
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
27 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
48m 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?
This drive is 91% highway, meaning you'll spend most of your time on interstates and major highways. The longest stretch on I 25 covers 20.1 miles, offering a good period of consistent cruising. You'll transition from highway driving to surface roads as you approach Mills. Expect a rural feel for much of the route, with minimal traffic congestion.
91% highway — fuel and pacing are the main things to plan.
14 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 20.1 mi on I 25.
How Hard Is This Drive?
6/10
This is a straightforward highway drive that stays mostly on I 25 and WY 259. You will hit about 11 points where you need to pay attention to lane position or signs. The trickiest moment comes early in the drive near Lewis Street.
Driving Effort
6/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 42.3 miles you will encounter 11 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: near the start (Lewis Street): Navigation decision point; at 18.6 miles: Exit ramp - move to the correct lane early; at 39.2 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Midwest, WY to Mills, WY, road signs begin pointing toward Port Of Entry along the way.
Port Of Entry
39.2 mi in
|
~42m
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 48m. Total distance: 42.3 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
48m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (91%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 20.1 miles on I 25. The full list of main roads is in the Roads section above.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Mills, WY before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.
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.
The main spots that need attention: near the start (Lewis Street): Navigation decision point; at 18.6 miles: Exit ramp - move to the correct lane early; at 39.2 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one.
Yes. A round trip is manageable in a single day if you plan a break at Mills, WY before heading back.
How this page is built
Compiled by the US Trip Planner 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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