How far is Castle Rock, CO from Fountain, CO?
The driving distance from Castle Rock, CO to Fountain, CO is about 54.9 miles (88.3 km), with a travel time of about 01h 01m by car.
- The straight-line flight distance is about 48.4 miles (77.9 km).
- For a round trip, plan for roughly 02h 03m 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 01h 01m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Census designated place
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny then Slight Chance Rain Showers
Sunny
Driving Route Map
The map below follows the saved road route between Castle Rock and Fountain.
Turn-by-Turn Driving Directions
Step-by-step road directions between Castle Rock and Fountain.
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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
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3
Exit the roundabout onto 3rd Street
135 m · 21 sec · 3rd Street
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4
Turn left onto North Wilcox Street
1119 ft · 38 sec · North Wilcox Street
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5
Enter the roundabout and take exit 2 toward South Wilcox Street
12 m · 1 sec · South Wilcox Street
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6
Exit the roundabout onto South Wilcox Street
1432 ft · 53 sec · South Wilcox Street
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7
Turn right onto West Plum Creek Parkway
981 ft · 35 sec · West Plum Creek Parkway
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8
Turn left onto Frontage Road
860 ft · 29 sec · Frontage Road
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9
Take the ramp left toward I 25 South
1440 ft · 37 sec
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10
Merge slight left
32.4 mi · 33 min
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11
Continue on Monument Valley Freeway
8.8 mi · 10 min · Monument Valley Freeway
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12
Continue on Ronald Reagan Highway
915 ft · 12 sec · Ronald Reagan Highway
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13
Keep slight left to continue on Ronald Reagan Highway
11.1 mi · 12 min · Ronald Reagan Highway
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14
Take the exit slight right toward US 85 North: Fountain
1042 ft · 20 sec
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15
Keep slight left to continue on US 85 North: Fountain
61 m · 11 sec
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16
Turn left onto Santa Fe Avenue
3010 ft · 1 min · Santa Fe Avenue
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17
Turn right onto West Indiana Avenue
1035 ft · 24 sec · West Indiana Avenue
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18
At the end of the road, turn left onto South Main Street
1001 ft · 20 sec · South Main Street
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19
Arrive at your destination
0 m · 1 sec · South Main Street
Car Route Details
A richer read on the saved driving route between Castle Rock and Fountain.
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 25 South
Merge slight left
32.4 mi · 00h 33m
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.
Sunny then Slight Chance Rain Showers leaving Castle Rock and Sunny near Fountain.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Castle Rock to Fountain?
The road trip is about 54.9 miles (88.3 km) and usually takes 01h 01m 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?
Gleneagle is a useful midpoint, sitting about 27.5 miles from Castle Rock and 27.4 miles from Fountain.
How much longer is the road route than the straight-line distance?
The direct path is about 48.4 miles (77.9 km), while the road route adds roughly 6.5 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 8:00 AM to 10:00 AM MDT. If you want a more comfortable same-day return, try to leave by 4:26 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $7.17 one way or $14.35 round trip. Estimated CO2 is about 17.2 kg one way.
What should you check before leaving?
Before you leave, expect Sunny then Slight Chance Rain Showers around Castle Rock and Sunny near Fountain.
Stop Ideas Near Gleneagle
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 Gleneagle.
Colorado Springs, Colorado
Pine Junction, CO
Denver (Bus Station), Colorado
Union Station
Flight Path Map
This map shows the direct air route between Castle Rock and Fountain. Straight-line distance: 48.4 mi (77.89 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 Fountain
City in Colorado, United States
| Population | 31,017 |
| Coordinates | 38.6822200, -104.7008100 |
| Altitude | 1690 |
| Country | United States |
End: Fountain (-104.70081, 38.68222)
Estimated Travel Time
Distance: 88 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 49m |
| 40 mph (64.37 km/h) | 01h 22m |
| 50 mph (80.47 km/h) | 01h 05m |
| 60 mph (96.56 km/h) | 00h 54m |
| 70 mph (112.65 km/h) | 00h 47m |
| 80 mph (129 km/h) | 00h 41m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.70 | $7.17 | $14.35 |
| Mid-grade | $4.08 | $7.92 | $15.85 |
| Premium | $4.39 | $8.52 | $17.04 |
| Diesel | $4.74 | $9.19 | $18.38 |
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 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.