Nonstop flight route between Casper, Wyoming, United States and Granite Mountain, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from CPR to GMT:
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- About this route
- CPR Airport Information
- GMT Airport Information
- Facts about CPR
- Facts about GMT
- Map of Nearest Airports to CPR
- List of Nearest Airports to CPR
- Map of Furthest Airports from CPR
- List of Furthest Airports from CPR
- Map of Nearest Airports to GMT
- List of Nearest Airports to GMT
- Map of Furthest Airports from GMT
- List of Furthest Airports from GMT
About this route:
A direct, nonstop flight between Casper–Natrona County International AirportCasper Army Airfield (CPR), Casper, Wyoming, United States and Granite Mountain Air Station (GMT), Granite Mountain, Alaska, United States would travel a Great Circle distance of 2,582 miles (or 4,156 kilometers).
A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the large distance between Casper–Natrona County International AirportCasper Army Airfield and Granite Mountain Air Station, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Casper–Natrona County International AirportCasper Army Airfield and Granite Mountain Air Station. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | CPR / KCPR |
Airport Name: | Casper–Natrona County International AirportCasper Army Airfield |
Location: | Casper, Wyoming, United States |
GPS Coordinates: | 42°54'29"N by 106°27'51"W |
Area Served: | Casper, Wyoming |
Operator/Owner: | Airport Board of Trustees |
Airport Type: | Public |
Elevation: | 5350 feet (1,631 meters) |
# of Runways: | 2 |
View all routes: | Routes from CPR |
More Information: | CPR Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | GMT / PAGZ |
Airport Names: |
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Location: | Granite Mountain, Alaska, United States |
GPS Coordinates: | 65°24'7"N by 161°16'53"W |
Operator/Owner: | U.S. Government |
Airport Type: | Private |
Elevation: | 1313 feet (400 meters) |
# of Runways: | 1 |
View all routes: | Routes from GMT |
More Information: | GMT Maps & Info |
Facts about Casper–Natrona County International AirportCasper Army Airfield (CPR):
- The furthest airport from Casper–Natrona County International AirportCasper Army Airfield (CPR) is Sir Gaëtan Duval Airport (RRG), which is located 10,731 miles (17,270 kilometers) away in Rodrigues Island, Mauritius.
- Near the airport is the NCIA Business Park, which houses over 35 business ranging from manufacturing to aviation.
- The closest airport to Casper–Natrona County International AirportCasper Army Airfield (CPR) is Converse County Airport (DGW), which is located 55 miles (89 kilometers) E of CPR.
- Casper–Natrona County International AirportCasper Army Airfield (CPR) has 2 runways.
- Casper had airline flights in the 1930s at Wardwell Field, north of town at 42°54′47″N 106°21′00″W / 42.913°N 106.35°W / 42.913.
- Because of Casper–Natrona County International AirportCasper Army Airfield's high elevation of 5,350 feet, planes must typically fly at a faster airspeed in order to takeoff or land at CPR. Combined with a high temperature, this could make CPR a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- The 331st was converted to a Very Heavy group in July 1944 and began training for deployment to Twentieth Air Force in the Pacific.
Facts about Granite Mountain Air Station (GMT):
- The closest airport to Granite Mountain Air Station (GMT) is Haycock Airport (HAY), which is located only 14 miles (23 kilometers) SSE of GMT.
- In addition to being known as "Granite Mountain Air Station", another name for GMT is "GSZ".
- Granite Mountain Air Station (GMT) currently has only 1 runway.
- The furthest airport from Granite Mountain Air Station (GMT) is Cape Town International Airport (CPT), which is located 10,265 miles (16,520 kilometers) away in Cape Town, South Africa.