This 170.5-mile journey from South Park, WY to Riverton, WY is a manageable day trip, taking approximately 3 hours and 22 minutes to complete. You'll navigate primarily using South Park Loop Road and Highway 89, with a small portion on West Broadway Avenue. Given its relatively short duration and the "turn-heavy local drive" profile, it's best tackled in a single day. The estimated fuel cost for this trip is around $27. Both your origin and destination are situated within the Mountain West region, so expect consistent scenery throughout this Wyoming drive.
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
85.3 miles from South Park, WY
A natural place for your longest stop of the day
, about 1h 52m into the drive
.
Main Roads
Road
Distance
Duration
South 1st Street
77.9 mi
1h 27m
East Highway 287
53.2 mi
1h
North Highway 89
29.3 mi
40m
South Highway 89
4.3 mi
6m
West Ramshorn Street
2.2 mi
2m
West Broadway Avenue
1 mi
2m
North Cache Street
0.9 mi
2m
Melody Creek Lane
0.7 mi
2m
Longest stretch:
South 1st Street
— 77.9 mi, about 1h 27m
Turn-by-Turn Driving Directions
Step-by-step road directions between South Park, WY and Riverton, WY.
1
Start on Melody Creek Lane
0.7 mi·2 min·Melody Creek Lane
2
At end of road, turn left onto South Park Loop Road
0.6 mi·1 min·South Park Loop Road
3
Turn left onto US 26; US 89; US 189; US 191
4.3 mi·6 min·South Highway 89
4
Continue on US 26; US 89; US 189; US 191
1.0 mi·2 min·West Broadway Avenue
5
Turn right onto West Pearl Avenue
0.4 mi·49 sec·West Pearl Avenue
6
Turn left onto South Cache Drive
392 ft·9 sec·South Cache Drive
7
Continue on US 26; US 89; US 191
0.9 mi·2 min·North Cache Street
8
Continue on US 26; US 89; US 191
6.0 mi·8 min·North Highway 89
9
Enter roundabout onto US 26; US 89; US 191
110 ft·6 sec·North Highway 89
10
Continue on US 26; US 89; US 191
23 mi·32 min·North Highway 89
11
Continue on US 26; US 287
53 mi·1 hr·East Highway 287
12
Continue on US 26; US 287
2.2 mi·2 min·West Ramshorn Street
13
Turn right onto US 26; US 287
78 mi·1 hr 27 min·South 1st Street
Use the straight lane.
14
At end of road, turn left onto US 26; WY 789
101 ft·1 sec·North Federal Boulevard
15
Arrive at destination
US 26; WY 789
Trip Plan
For this 170.5-mile drive, leaving in the morning is recommended to allow ample time to reach Riverton, WY, with its 3-hour and 22-minute estimated duration. Since this is a single-day trip, you have flexibility with your schedule and can plan for one stop along the way. Keep an eye on your fuel gauge, especially as you transition between South Park Loop Road and Highway 89, to ensure you have enough gas to reach your destination comfortably, given the $27 fuel cost estimate.
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 85.3 miles from South Park, WY, or about 1h 52m into the drive.
The longest continuous stretch on this route runs about 77.9 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 38 miles or 58m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 85.3 miles or 1h 52m 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 54m
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 South Park, 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 South Park, WY
This is one driving day of about 170.5 miles and 3h 28m.
Your first comfortable stop window is around 38 miles from South Park, 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.
The longest stretch is on South 1st Street for about 77.9 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 7
5 decision points cluster between mile 0.7 and 92.7 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
4
0.7 mi into trip|~2m in|South Park Loop Road
At end of road, turn left onto South Park Loop Road
Navigation decision point
4
1.3 mi into trip|~4m in|US 26; US 89; US 189; US 191 / South Highway 89
Turn left onto US 26; US 89; US 189; US 191 / South Highway 89
Navigation decision point
4
7 mi into trip|~14m in|South Cache Drive
Turn left onto South Cache Drive
Navigation decision point
4
13.9 mi into trip|~25m in|US 26; US 89; US 191 / North Highway 89
Enter roundabout onto US 26; US 89; US 191 / North Highway 89
Roundabout - know your exit number before entering
5
92.7 mi into trip|~2h 1m in|US 26; US 287 / South 1st Street
Turn right onto US 26; US 287 / South 1st Street
Lane positioning matters here
Use the straight lane.
Fuel & Cost
Regular Gas
$27.02 one way
$54.04 round trip
$4.03/gal25.4 MPG avg60 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.22
$28.32
$56.64
premium
$4.53
$30.41
$60.83
diesel
$5.61
$37.64
$75.29
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$27
Meals
$25–$50
Total
$52–$77
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 59.7 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $18 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
51.2
0
$17.90
$8.18
Efficient EV
42.6
0
$14.92
$6.82
EV Truck/SUV
68.2
0
$23.87
$10.91
Gas CO2
60 kg
EV CO2
20 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.
Forecast as of Apr 15, 2026
Origin
South Park, WY
Night
in South Park on Saturday
Local time
10:22 PM
MDT
Current temp
64°F
Unavailable
Live forecast
Destination
Riverton, WY
Night
in Riverton on Saturday
Local time
10:22 PM
MDT
Current temp
75°F
Unavailable
Live forecast
23°F
Dubois, WY
85 mi in
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
11 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 28m 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.
National Parks Near This Route
Worth a detour if your schedule allows.
Grand Teton National Park
National Park
Soaring over a landscape rich with wildlife, pristine lakes, and majestic alpine vistas, the Teton Range stands as a testament to generations of stewards. For over 11,000 years, communities have thriv...
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
This route is characterized as a "turn-heavy local drive," meaning you won't be spending much time on high-speed highways, as indicated by the 0% highway share. While there isn't a "longest stretch" noted that would offer extended periods of cruising, be prepared for frequent directional changes and varying road conditions typical of local routes. The drive will likely feel engaging rather than monotonous, requiring your attention as you navigate through different local roads.
51% highway, the rest on surface roads — varied driving throughout.
15 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 77.9 mi on South 1st Street.
How Hard Is This Drive?
1/10
This route mixes highway mileage with some local-road sections near the start or finish. Navigation is very simple - set it and forget it for most of the drive. The trickiest moment comes around 0.7 miles in near South Park Loop Road.
Driving Effort1/10
Very easy - short and simple to drive
Balances navigation complexity with total wheel time.
The drive from South Park, WY to Riverton, WY is easy. At 3h 28m with 51% highway, most drivers will find it relaxed and low-stress.
Where does it get tricky?
The main spots that need attention: at 0.7 miles (South Park Loop Road): Navigation decision point; at 1.3 miles (US 26; US 89; US 189; US 191 / South Highway 89): Navigation decision point; at 7 miles (South Cache Drive): Navigation decision point.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 3h 28m. Total distance: 170.5 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Mixed highway & surface route profile with national parks nearby.
Frequently Asked Questions
The longest stretch is about 77.9 miles on South 1st Street. 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.
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.
The main spots that need attention: at 0.7 miles (South Park Loop Road): Navigation decision point; at 1.3 miles (US 26; US 89; US 189; US 191 / South Highway 89): Navigation decision point; at 7 miles (South Cache Drive): Navigation decision point.
Yes — Grand Teton National Park. See the National Parks section for detour distances and tips on detours.
Possible but tiring. At 3.5 hours each way, an in-and-out day trip would put you behind the wheel for 7.0 hours — manageable with a long break at Riverton, WY, but most travelers stay overnight.
