How far is Castle Rock, CO from Glenwood Springs, CO?
The driving distance from Castle Rock, CO to Glenwood Springs, CO is about 182.9 miles (294.3 km), with a travel time of about 03h 33m by car.
- The straight-line flight distance is about 132.3 miles (212.9 km).
- For a round trip, plan for roughly 07h 06m 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 33m.
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.
Sunny
Driving Route Map
The map below follows the saved road route between Castle Rock and Glenwood Springs.
Turn-by-Turn Driving Directions
Step-by-step road directions between Castle Rock and Glenwood Springs.
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1
Start on North Cantril Street
27 m · 8 sec · North Cantril Street
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2
Turn left onto 3rd Street
641 ft · 23 sec · 3rd Street
-
3
Exit the roundabout onto 3rd Street
135 m · 18 sec · 3rd Street
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4
Turn right onto North Wilcox Street
2807 ft · 2 min · North Wilcox Street
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5
Take the ramp straight toward I 25 North
1715 ft · 42 sec
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6
Merge slight left
26.6 mi · 30 min
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7
Take the exit slight right toward US 6 West: 6th Avenue
945 ft · 23 sec
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8
Keep slight right to continue on US 6 West: 6th Avenue, Lakewood
2200 ft · 54 sec
-
9
Continue on Dinosaur Diamond Prehistoric Highway
1.5 km · 2 min · Dinosaur Diamond Prehistoric Highway
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10
Keep slight left to continue on US 6
609 ft · 11 sec
-
11
Merge slight left onto West 6th Avenue Freeway
7.6 mi · 9 min · West 6th Avenue Freeway
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12
Take the exit slight right toward I 70 West: Grand Junction
1.1 km · 56 sec
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13
Merge slight left
144.9 mi · 2 hr 45 min
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14
Take the exit slight right toward CO 82 East: Glenwood Springs, Aspen
975 ft · 34 sec
-
15
Turn sharp left onto Laurel Street
65 m · 9 sec · Laurel Street
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16
Turn right onto West 6th Street
138 m · 22 sec · West 6th Street
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17
Turn left onto Pine Street
37 m · 5 sec · Pine Street
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18
Arrive at your destination
0 m · 1 sec · Pine Street
Car Route Details
A richer read on the saved driving route between Castle Rock and Glenwood Springs.
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 70 West
Merge slight left
145 mi · 02h 45m
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.
Sunny leaving Castle Rock and Sunny near Glenwood Springs.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Castle Rock to Glenwood Springs?
The road trip is about 182.9 miles (294.3 km) and usually takes 03h 33m 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 91.3 miles from Castle Rock and 91.5 miles from Glenwood Springs.
How much longer is the road route than the straight-line distance?
The direct path is about 132.3 miles (212.9 km), while the road route adds roughly 50.6 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 9:54 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $23.85 one way or $47.70 round trip. Estimated CO2 is about 57.3 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Castle Rock and Sunny near Glenwood Springs.
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 Castle Rock and Glenwood Springs. Straight-line distance: 132.26 mi (212.85 km).
#1 Castle Rock
The most populous city in Douglas County, Colorado.
| Population | 70,567 |
| Coordinates | 39.3722100, -104.8560900 |
| Altitude | 1897 |
| Country | United States |
#2 Glenwood Springs
City in Colorado
| Population | 10,222 |
| Coordinates | 39.5505400, -107.3247800 |
| Altitude | 1756 |
| Country | United States |
End: Glenwood Springs (-107.32478, 39.55054)
Estimated Travel Time
Distance: 294 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 05m |
| 40 mph (64.37 km/h) | 04h 34m |
| 50 mph (80.47 km/h) | 03h 39m |
| 60 mph (96.56 km/h) | 03h 02m |
| 70 mph (112.65 km/h) | 02h 36m |
| 80 mph (129 km/h) | 02h 16m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.70 | $23.85 | $47.70 |
| Mid-grade | $4.08 | $26.34 | $52.68 |
| Premium | $4.39 | $28.32 | $56.64 |
| Diesel | $4.74 | $30.55 | $61.11 |
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 · Apr 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.