How far is Alta Sierra, CA from Riverside, CA?
The driving distance from Alta Sierra, CA to Riverside, CA is about 198.8 miles (320 km), with a travel time of about 04h 17m by car.
- The straight-line flight distance is about 139.3 miles (224.2 km).
- For a round trip, plan for roughly 08h 34m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM PDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 04h 17m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
Census-designated place in Kern County, California
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain And Snow
Slight Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Alta Sierra and Riverside.
Turn-by-Turn Driving Directions
Step-by-step road directions between Alta Sierra and Riverside.
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1
Start on Old State Road
148 m · 22 sec · Old State Road
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2
Continue on Old State Road
2227 ft · 1 min · Old State Road
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3
Turn right onto Evans Road
7.3 mi · 11 min · Evans Road
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4
Turn sharp right onto Wofford Heights Boulevard
6.6 mi · 10 min · Wofford Heights Boulevard
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5
Turn left onto CA 178
1140 ft · 28 sec
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6
Merge slight left onto Isabella Walker Pass Road
43.5 mi · 1 hr 4 min · Isabella Walker Pass Road
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7
Turn left onto Midland Trail
2588 ft · 34 sec · Midland Trail
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8
Continue on Aerospace Highway
2.5 mi · 3 min · Aerospace Highway
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9
Turn right onto West Inyokern Road
4.7 mi · 8 min · West Inyokern Road
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10
Take the ramp right
1874 ft · 25 sec
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11
Merge slight left onto Blue Star Memorial Highway
24.4 mi · 29 min · Blue Star Memorial Highway
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12
Continue on Red Mountain Road
1.5 km · 2 min · Red Mountain Road
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13
Continue on Blue Star Memorial Highway
66.7 mi · 1 hr 21 min · Blue Star Memorial Highway
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14
Take the exit straight toward I 15 South: San Bernardino, Los Angeles
1.1 km · 1 min
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15
Merge slight left onto Barstow and Mojave Freeway
3.4 mi · 4 min · Barstow and Mojave Freeway
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16
Continue on CHP Officer Larry L. Wetterling and San Bernardino County Sheriff's Lieutenant Alfred E. Stewart Memorial Highway
5.6 mi · 6 min · CHP Officer Larry L. Wetterling and San Bernardino County Sheriff's Lieutenant Alfred E. Stewart Memorial Highway
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17
Continue on Barstow and Mojave Freeway
6.3 mi · 7 min · Barstow and Mojave Freeway
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18
Continue on Barstow Freeway
1095 ft · 13 sec · Barstow Freeway
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19
Keep slight left to continue on Barstow Freeway
9.3 mi · 10 min · Barstow Freeway
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20
Continue on San Bernardino Freeway
5.6 mi · 6 min · San Bernardino Freeway
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21
Continue on Riverside Freeway
5.3 mi · 6 min · Riverside Freeway
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22
Continue on Riverside Freeway
3.6 mi · 4 min · Riverside Freeway
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23
Take the exit slight right toward Central Avenue, Riverside Plaza Avenue
1280 ft · 33 sec
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24
Turn right onto Central Avenue
1.1 km · 1 min · Central Avenue
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25
Turn slight left
52 m · 13 sec
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26
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Alta Sierra and Riverside.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Blue Star Memorial Highway
Continue on Blue Star Memorial Highway
66.7 mi · 01h 21m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Rain And Snow leaving Alta Sierra and Slight Chance Rain Showers near Riverside.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Alta Sierra to Riverside?
The road trip is about 198.8 miles (320 km) and usually takes 04h 17m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Boron is a useful midpoint, sitting about 99.5 miles from Alta Sierra and 99.4 miles from Riverside.
How much longer is the road route than the straight-line distance?
The direct path is about 139.3 miles (224.2 km), while the road route adds roughly 59.5 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 6:00 AM to 8:00 AM PDT. If you want a more comfortable same-day return, try to leave by 8:26 AM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $40.50 one way or $81.00 round trip. Estimated CO2 is about 62.4 kg one way.
What should you check before leaving?
Before you leave, expect Rain And Snow around Alta Sierra and Slight Chance Rain Showers near Riverside.
Stop Ideas Near Boron
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Boron.
Mojave, California
Lancaster, California
Barstow Harvey House
Barstow (Bus), California
Flight Path Map
This map shows the direct air route between Alta Sierra and Riverside. Straight-line distance: 139.28 mi (224.15 km).
#1 Alta Sierra
Census-designated place in Nevada County, California
| Population | 7,047 |
| Coordinates | 35.7312600, -118.5539000 |
| Altitude | 1743 |
| Country | United States |
#2 Riverside
The most populous city in Riverside County, California and the center of the Riverside metropolitan area.
| Population | 330,786 |
| Coordinates | 33.9533500, -117.3961600 |
| Altitude | 252 |
| Country | United States |
End: Riverside (-117.39616, 33.95335)
Estimated Travel Time
Distance: 320 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 37m |
| 40 mph (64.37 km/h) | 04h 58m |
| 50 mph (80.47 km/h) | 03h 58m |
| 60 mph (96.56 km/h) | 03h 18m |
| 70 mph (112.65 km/h) | 02h 50m |
| 80 mph (129 km/h) | 02h 28m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.77 | $40.50 | $81.00 |
| Mid-grade | $6.07 | $42.58 | $85.17 |
| Premium | $6.24 | $43.83 | $87.65 |
| Diesel | $7.57 | $53.12 | $106.24 |
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 California · Apr 11, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.