Spanning 279.2 miles across Montana, this trek from Evergreen to Dillon is a straightforward journey that typically takes about 5 hours to complete. Because the route is highly efficient, it is well-suited for a single-day trip, allowing you to reach your destination without the need for an overnight stay. You will primarily navigate a combination of MT 83, I-90, and I-15 throughout the drive. Budgeting approximately $44 for fuel should cover your transit costs comfortably. Since both the origin and destination are located within the Mountain West, you can expect a consistent regional feel as you traverse the state. This is a practical, highway-focused route designed for those who prefer to keep moving toward their goal.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
139.6 miles from Evergreen, MT
A natural place for your longest stop of the day
, about 2h 39m into the drive
.
Main Roads
Road
Distance
Duration
MT 83
91.1 mi
1h 43m
I 15
56.8 mi
53m
I 90
41.4 mi
38m
State Highway 141
32.5 mi
35m
MT 200
23.8 mi
25m
MT 35
15.9 mi
18m
US 12
12.9 mi
14m
East Evergreen Drive
1 mi
2m
Longest stretch:
MT 83
— 91.1 mi, about 1h 43m
Turn-by-Turn Driving Directions
Step-by-step road directions between Evergreen, MT and Dillon, MT.
1
Start on US 2
26 ft·3 sec·La Salle Road
2
Turn right onto East Evergreen Drive
1.0 mi·2 min·East Evergreen Drive
3
Turn right onto Helena Flats Road
0.1 mi·21 sec·Helena Flats Road
4
Turn left onto MT 35
1.1 mi·1 min·MT 35
Use the right lane.
5
Continue on MT 35
15 mi·17 min·MT 35
Use the straight lane.
6
Turn left onto MT 83
91 mi·1 hr 43 min·MT 83
Use the left lane.
7
Turn left onto MT 200
24 mi·25 min·MT 200
8
Turn right onto MT 141
32 mi·35 min·State Highway 141
9
Turn sharp right onto US 12
13 mi·14 min·US 12
10
Turn left
0.5 mi·42 sec
11
Continue on this road
0.2 mi·13 sec·this road
12
Take the ramp
0.9 mi·1 min
13
Merge onto I 90
41 mi·38 min·I 90
14
Take the exit
0.5 mi·1 min
Toward I 15 South: Dillon, Idaho Falls
15
Merge onto I 15
57 mi·53 min·I 15
16
Take the exit onto I 15 Bus
0.8 mi·1 min·I 15 Bus
Toward I 15 Business, MT 41: Dillon, Twin Bridges
17
Turn right onto Black Tail Boulevard
0.6 mi·1 min·Black Tail Boulevard
18
Continue on West Bannack Street
0.3 mi·42 sec·West Bannack Street
19
Turn right onto South Idaho Street
350 ft·15 sec·South Idaho Street
20
Arrive at destination
South Idaho Street
Trip Plan
To make the most of your 5-hour drive, try to depart early in the morning to avoid midday traffic fluctuations. Given that there is only one planned stop included in this itinerary, use it wisely to refuel your vehicle and stretch your legs before tackling the remaining distance. Because the longest stretch of 91.1 miles occurs on MT 83, ensure your fuel tank is topped off before you turn onto that section to avoid any mid-route concerns. Flexibility is a major advantage here, as the manageable duration allows you to adjust your departure time based on personal preference. Keep a steady pace on the interstate sections to maintain your arrival schedule without unnecessary stress.
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 139.6 miles from Evergreen, MT, or about 2h 39m into the drive.
The longest continuous stretch on this route runs about 91.1 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 61 miles or 1h 11m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 139.6 miles or 2h 39m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 10m
Traffic, exits, and arrival timing usually matter more near Dillon, MT than in the middle of the route.
Before You Leave
+
Open the route before leaving Evergreen, MT 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 Evergreen, MT
This is one driving day of about 279.2 miles and 5h.
Your first comfortable stop window is around 61 miles from Evergreen, MT.
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.
The longest stretch is on MT 83 for about 91.1 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 14
5 decision points cluster between mile 1.2 and 277.5 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
6
1.2 mi into trip|~2m in|MT 35
Turn left onto MT 35
Lane positioning matters here
Use the right lane.
5
17 mi into trip|~21m in|MT 83
Turn left onto MT 83
Lane positioning matters here
Use the left lane.
5
164.4 mi into trip|~3h 6m in|US 12
Turn sharp right onto US 12
Sharp turn - reduce speed on approach
5
220.2 mi into trip|~4h 1m in
Take the exit toward I 15 South: Dillon, Idaho Falls
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward I 15 South: Dillon, Idaho Falls
5
277.5 mi into trip|~4h 56m in|I 15 Bus
Take the exit onto I 15 Bus toward I 15 Business, MT 41: Dillon, Twin Bridges
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward I 15 Business, MT 41: Dillon, Twin Bridg...
Fuel & Cost
Regular Gas
$44.24 one way
$88.49 round trip
$4.03/gal25.4 MPG avg98 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.22
$46.38
$92.75
premium
$4.53
$49.81
$99.61
diesel
$5.61
$61.64
$123.29
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$44
Meals
$25–$50
Total
$69–$94
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 97.7 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $29 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
83.8
1
$29.32
$13.40
Efficient EV
69.8
0
$24.43
$11.17
EV Truck/SUV
111.7
1
$39.09
$17.87
Gas CO2
98 kg
EV CO2
33 kg (66% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
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.
Forecast as of Apr 12, 2026
Origin
Evergreen, MT
Night
in Evergreen on Saturday
Local time
10:34 PM
MDT
Current temp
39°F
Slight Chance Rain Showers
SSE 2 mph17% chanceLive forecast
Destination
Dillon, MT
Night
in Dillon on Saturday
Local time
10:34 PM
MDT
Current temp
64°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
25 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
5h on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
More Details
What kind of drive is this?
Expect a drive defined by high-speed travel, as 99% of your journey takes place on highways. The road's personality shifts from the local rhythm of MT 83, which features the longest uninterrupted stretch of 91.1 miles, to the faster, more industrial pace of the interstate system. You will spend the bulk of your time on I-90 and I-15, where the driving is consistent and predictable. This highway-focused profile means you can cover significant ground quickly, though the terrain remains firmly rooted in the Mountain West. It is an ideal route if you want to minimize technical navigation and focus on making steady progress.
99% highway — fuel and pacing are the main things to plan.
20 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 91.1 mi on MT 83.
How Hard Is This Drive?
4/10
This is a straightforward highway drive that stays mostly on MT 83 and I 15. There are only a few real navigation decisions along the way. The trickiest moment comes around 1.2 miles in near MT 35.
Driving Effort4/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
This is a straightforward 5h drive. You will face about 14 decision points, but nothing that requires special attention if you follow navigation.
Where does it get tricky?
The main spots that need attention: at 1.2 miles (MT 35): Lane positioning matters here; at 17 miles (MT 83): Lane positioning matters here; at 164.4 miles (US 12): Sharp turn - reduce speed on approach.
Elevation Profile
High-altitude sections with notable climbs
5,873 ft2,924 ft
Total Climb
3,262 ft
Total Descent
1,114 ft
Highest Point
5,873 ft
~232.7 mi in
Elevation Range
2,950 ft
Notable High Points
4,758 ft at ~162.9 miles+312 ft prominence
5,873 ft at ~232.7 miles+435 ft prominence
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 Evergreen, MT to Dillon, MT, road signs begin pointing toward Idaho Falls along the way.
Idaho Falls
220.2 mi in|~4h 1m
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 5h. Total distance: 279.2 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
The longest stretch is about 91.1 miles on MT 83. The full list of main roads is in the Roads section above.
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.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
Mostly yes along the main roads, but rural stretches through MT 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: at 1.2 miles (MT 35): Lane positioning matters here; at 17 miles (MT 83): Lane positioning matters here; at 164.4 miles (US 12): Sharp turn - reduce speed on approach.
Not recommended in a single day. At 5.0 hours each way, a round trip means 10.0 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Dillon, MT before the return drive.
