How far is Rock Springs, WY from Sleepy Hollow, WY?
The driving distance from Rock Springs, WY to Sleepy Hollow, WY is about 351.2 miles (565.2 km), with a travel time of about 06h 27m by car.
- The straight-line flight distance is about 265 miles (426.4 km).
- For a round trip, plan for roughly 12h 55m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 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 06h 27m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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 of the United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Rock Springs and Sleepy Hollow.
Turn-by-Turn Driving Directions
Step-by-step road directions between Rock Springs and Sleepy Hollow.
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1
Start on Collins Street
26 m · 7 sec · Collins Street
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2
Turn right onto Agate Street
129 m · 19 sec · Agate Street
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3
At the end of the road, turn left onto Edgar Street
789 ft · 26 sec · Edgar Street
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4
Turn right onto Virginia Street
905 ft · 40 sec · Virginia Street
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5
At the end of the road, turn right onto James Drive
977 ft · 33 sec · James Drive
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6
At the end of the road, turn left onto South Side Belt Route
2190 ft · 48 sec · South Side Belt Route
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7
Turn right onto 9th Street
2182 ft · 38 sec · 9th Street
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8
Take the ramp right
1916 ft · 30 sec
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9
Merge slight left onto Dwight D. Eisenhower Highway
103.9 mi · 1 hr 41 min · Dwight D. Eisenhower Highway
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10
Take the exit slight right toward I 80 Business East, WY 789 North: Rawlins
1997 ft · 52 sec
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11
Turn left onto West Spruce Street
1.7 mi · 3 min · West Spruce Street
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12
Turn left onto 3rd Street
44.1 mi · 51 min · 3rd Street
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13
Continue straight
63.7 mi · 1 hr 13 min
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14
Turn left onto Casper West Belt
7.3 mi · 9 min · Casper West Belt
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15
Continue straight
3 mi · 4 min
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16
Turn left onto I 25 North, US 87 North: Midwest
1989 ft · 51 sec
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17
Merge slight left
20.1 mi · 19 min
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18
Take the exit slight right toward Horse Ranch Creek Road
1962 ft · 50 sec
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19
Turn right onto Horseshoe Road
17.9 mi · 20 min · Horseshoe Road
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20
Turn right
51.3 mi · 59 min
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21
Turn left onto State Highway 59 South
32.8 mi · 36 min · State Highway 59 South
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22
Turn right onto Union Chapel Road
1.2 mi · 3 min · Union Chapel Road
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23
Turn left onto Mather Avenue
1261 ft · 57 sec · Mather Avenue
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24
At the end of the road, turn right onto Sleepy Hollow Boulevard
940 ft · 46 sec · Sleepy Hollow Boulevard
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25
Turn left onto Irving Boulevard
978 ft · 45 sec · Irving Boulevard
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26
Turn right onto Tarry Street
747 ft · 38 sec · Tarry Street
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27
Turn left onto Katrina Avenue
1704 ft · 1 min · Katrina Avenue
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28
Turn right
119 m · 17 sec
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29
Continue straight
140 m · 21 sec
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30
Turn left
84 m · 20 sec
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31
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Rock Springs and Sleepy Hollow.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Dwight D. Eisenhower Highway
Merge slight left onto Dwight D. Eisenhower Highway
104 mi · 01h 41m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Sunny leaving Rock Springs and Mostly Sunny near Sleepy Hollow.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Rock Springs to Sleepy Hollow?
The road trip is about 351.2 miles (565.2 km) and usually takes 06h 27m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Bairoil is a useful midpoint, sitting about 175.4 miles from Rock Springs and 175.8 miles from Sleepy Hollow.
How much longer is the road route than the straight-line distance?
The direct path is about 265 miles (426.4 km), while the road route adds roughly 86.2 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 7:30 AM MDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $55.51 one way or $111.01 round trip. Estimated CO2 is about 110.1 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Rock Springs and Mostly Sunny near Sleepy Hollow.
Flight Path Map
This map shows the direct air route between Rock Springs and Sleepy Hollow. Straight-line distance: 264.93 mi (426.36 km).
#1 Rock Springs
City in Sweetwater County, Wyoming, United States
| Population | 22,943 |
| Coordinates | 41.5874600, -109.2029000 |
| Altitude | 1947 |
| Country | United States |
#2 Sleepy Hollow
Situated in the high plains of northeastern Wyoming at an elevation of 4,560 feet, this Campbell County census-designated place lies just south of the city of Gillette.
| Population | 0 |
| Coordinates | 44.2410900, -105.4222200 |
| Altitude | 1390 |
| Country | United States |
End: Sleepy Hollow (-105.42222, 44.24109)
Estimated Travel Time
Distance: 565 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 11h 42m |
| 40 mph (64.37 km/h) | 08h 46m |
| 50 mph (80.47 km/h) | 07h 01m |
| 60 mph (96.56 km/h) | 05h 51m |
| 70 mph (112.65 km/h) | 05h 01m |
| 80 mph (129 km/h) | 04h 22m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.48 | $55.51 | $111.01 |
| Mid-grade | $4.74 | $58.75 | $117.51 |
| Premium | $5.07 | $62.82 | $125.63 |
| Diesel | $6.21 | $76.93 | $153.86 |
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 Wyoming · Oct 15, 2026