How far is Steamboat Springs, CO from Castle Rock, CO?
The driving distance from Steamboat Springs, CO to Castle Rock, CO is about 178.6 miles (287.5 km), with a travel time of about 03h 18m by car.
- The straight-line flight distance is about 129.9 miles (209 km).
- For a round trip, plan for roughly 06h 36m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM MDT.
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 03h 18m.
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.
Town in Colorado, USA
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny then Slight Chance Showers And Thunderstorms
Sunny then Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Steamboat Springs and Castle Rock.
Turn-by-Turn Driving Directions
Step-by-step road directions between Steamboat Springs and Castle Rock.
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1
Start on the route
72 m · 19 sec
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2
Turn right onto 5th Street
62 m · 13 sec · 5th Street
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3
Turn left onto Lincoln Avenue
4.3 mi · 8 min · Lincoln Avenue
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4
Continue straight
3270 ft · 51 sec
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5
Continue straight
46.8 mi · 1 hr
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6
Turn right onto South 6th Street
1353 ft · 34 sec · South 6th Street
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7
Continue on Tyler Avenue
1.1 mi · 2 min · Tyler Avenue
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8
Continue on Colorado River Headwaters Scenic Byway
30.6 mi · 40 min · Colorado River Headwaters Scenic Byway
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9
Continue straight
5.3 mi · 9 min
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10
Continue straight
746 ft · 25 sec
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11
Take the exit left toward I 70 East
1368 ft · 25 sec
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12
Merge slight left
55.1 mi · 1 hr 6 min
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13
Take the exit slight right toward US 6 East: 6th Avenue, Lakewood
1795 ft · 44 sec
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14
Merge slight left onto West 6th Avenue Freeway
7.9 mi · 9 min · West 6th Avenue Freeway
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15
Take the exit slight right toward I 25: Fort Collins, Colorado Springs
1 km · 59 sec
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16
Take the exit slight right toward I 25 South: Colorado Springs
2680 ft · 1 min
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17
Merge slight left onto North Valley Highway
26.6 mi · 30 min · North Valley Highway
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18
Take the exit slight right toward Wilcox Street, Wolfensberger Road
1213 ft · 32 sec
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19
Turn left onto East Wolfensberger Road
132 m · 21 sec · East Wolfensberger Road
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20
Continue on North Wilcox Street
2093 ft · 1 min · North Wilcox Street
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21
Turn left onto 5th Street
979 ft · 37 sec · 5th Street
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22
Turn right onto North Cantril Street
837 ft · 29 sec · North Cantril Street
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23
Arrive at your destination
0 m · 1 sec · North Cantril Street
Car Route Details
A richer read on the saved driving route between Steamboat Springs and Castle Rock.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
I 70 East
Merge slight left
55.1 mi · 01h 06m
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.
Mostly Sunny then Slight Chance Showers And Thunderstorms leaving Steamboat Springs and Sunny then Slight Chance Showers And Thunderstorms near Castle Rock.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Steamboat Springs to Castle Rock?
The road trip is about 178.6 miles (287.5 km) and usually takes 03h 18m 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?
Dillon is a useful midpoint, sitting about 90.7 miles from Steamboat Springs and 87.9 miles from Castle Rock.
How much longer is the road route than the straight-line distance?
The direct path is about 129.9 miles (209 km), while the road route adds roughly 48.7 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 MDT. If you want a more comfortable same-day return, try to leave by 10:24 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $23.30 one way or $46.59 round trip. Estimated CO2 is about 56 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny then Slight Chance Showers And Thunderstorms around Steamboat Springs and Sunny then Slight Chance Showers And Thunderstorms near Castle Rock.
Stop Ideas Near Dillon
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 Dillon.
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Flight Path Map
This map shows the direct air route between Steamboat Springs and Castle Rock. Straight-line distance: 129.87 mi (209.01 km).
#1 Steamboat Springs
County seat city in Routt County, Colorado, USA
| Population | 13,169 |
| Coordinates | 40.4849800, -106.8317200 |
| Altitude | 2052 |
| Country | United States |
#2 Castle Rock
The most populous city in Douglas County, Colorado.
| Population | 70,567 |
| Coordinates | 39.3722100, -104.8560900 |
| Altitude | 1897 |
| Country | United States |
End: Cantril Street (-104.856315, 39.3722)
Estimated Travel Time
Distance: 287 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 57m |
| 40 mph (64.37 km/h) | 04h 27m |
| 50 mph (80.47 km/h) | 03h 34m |
| 60 mph (96.56 km/h) | 02h 58m |
| 70 mph (112.65 km/h) | 02h 33m |
| 80 mph (129 km/h) | 02h 13m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.70 | $23.30 | $46.59 |
| Mid-grade | $4.08 | $25.73 | $51.46 |
| Premium | $4.39 | $27.66 | $55.33 |
| Diesel | $4.74 | $29.84 | $59.69 |
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 Colorado · May 30, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.