How far is Oglala, SD from Spearfish, SD?
The driving distance from Oglala, SD to Spearfish, SD is about 147 miles (236.6 km), with a travel time of about 02h 24m by car.
- The straight-line flight distance is about 105.9 miles (170.4 km).
- For a round trip, plan for roughly 04h 48m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM MDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 02h 24m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Town in Custer County, South Dakota, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny then Chance Showers And Thunderstorms
Partly Sunny then Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Oglala and Spearfish.
Turn-by-Turn Driving Directions
Step-by-step road directions between Oglala and Spearfish.
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1
Start on Oglada 3
101 m · 23 sec · Oglada 3
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2
Turn right
1.5 mi · 2 min
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3
Turn right onto Lone Man Road
1.3 mi · 1 min · Lone Man Road
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4
Continue on Bureau of Indian Affairs Highway 41
15.6 mi · 18 min · Bureau of Indian Affairs Highway 41
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5
Continue on Loneman Day School Road
6 mi · 7 min · Loneman Day School Road
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6
Continue on Red Shirt Table Road
3.4 mi · 4 min · Red Shirt Table Road
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7
Continue on Bureau of Indian Affairs Highway 41
10.5 mi · 12 min · Bureau of Indian Affairs Highway 41
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8
Continue on State Highway 40
20.9 mi · 37 min · State Highway 40
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9
Continue on East Main Street
1.2 km · 1 min · East Main Street
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10
Turn right onto North Heartland Expressway
1043 ft · 16 sec · North Heartland Expressway
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11
Continue on South Highway 79
13.6 mi · 16 min · South Highway 79
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12
Continue on Cambell Street
1.6 mi · 3 min · Cambell Street
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13
Turn slight right onto East Saint Joseph Street
1.4 mi · 3 min · East Saint Joseph Street
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14
Continue on East Main Street
3281 ft · 1 min · East Main Street
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15
Turn right onto East Boulevard
833 ft · 28 sec · East Boulevard
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16
Turn left onto Omaha Street
1.6 km · 2 min · Omaha Street
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17
Turn right
1.2 mi · 2 min
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18
Keep slight left to continue on I 90 West: Gillette
1.3 km · 1 min
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19
Merge slight left
30.5 mi · 31 min
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20
Continue straight
14.2 mi · 14 min
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21
Take the exit slight right toward Jackson Boulevard, Black Hills State University
1541 ft · 43 sec
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22
Turn left onto East Jackson Boulevard
1 km · 2 min · East Jackson Boulevard
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23
Turn left onto North Main Street
45 m · 14 sec · North Main Street
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24
Arrive at your destination
0 m · 1 sec · North Main Street
Car Route Details
A richer read on the saved driving route between Oglala and Spearfish.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 90 West
Merge slight left
30.5 mi · 00h 31m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Partly Sunny then Chance Showers And Thunderstorms leaving Oglala and Partly Sunny then Slight Chance Showers And Thunderstorms near Spearfish.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Oglala to Spearfish?
The road trip is about 147 miles (236.6 km) and usually takes 02h 24m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Hermosa is a useful midpoint, sitting about 63.1 miles from Oglala and 83.9 miles from Spearfish.
How much longer is the road route than the straight-line distance?
The direct path is about 105.9 miles (170.4 km), while the road route adds roughly 41.1 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 8:00 AM to 10:00 AM MDT. If you want a more comfortable same-day return, try to leave by 1:42 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $19.57 one way or $39.14 round trip. Estimated CO2 is about 46.1 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny then Chance Showers And Thunderstorms around Oglala and Partly Sunny then Slight Chance Showers And Thunderstorms near Spearfish.
Stop Ideas Near Hermosa
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Willow Park
City of Rapid City
Rapid City City Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Hermosa.
Flight Path Map
This map shows the direct air route between Oglala and Spearfish. Straight-line distance: 105.88 mi (170.39 km).
#1 Oglala
Census-designated place in Oglala Lakota County, South Dakota, United States
| Population | 1,290 |
| Coordinates | 43.1885900, -102.7396200 |
| Altitude | 915 |
| Country | United States |
#2 Spearfish
City in Lawrence County, South Dakota, United States
| Population | 11,900 |
| Coordinates | 44.4908200, -103.8593700 |
| Altitude | 1112 |
| Country | United States |
End: North Main Street (-103.859186, 44.490846)
Estimated Travel Time
Distance: 237 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 53m |
| 40 mph (64.37 km/h) | 03h 40m |
| 50 mph (80.47 km/h) | 02h 56m |
| 60 mph (96.56 km/h) | 02h 26m |
| 70 mph (112.65 km/h) | 02h 05m |
| 80 mph (129 km/h) | 01h 50m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $19.57 | $39.14 |
| Mid-grade | $4.25 | $22.07 | $44.15 |
| Premium | $4.65 | $24.15 | $48.31 |
| Diesel | $5.30 | $27.53 | $55.06 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in South Dakota · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.