Nonstop flight route between Camp Roberts, San Luis Obispo County, California, United States and Atwater, California, United States:
Departure Airport:

Arrival Airport:

Distance from SYL to MER:
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- About this route
- SYL Airport Information
- MER Airport Information
- Facts about SYL
- Facts about MER
- Map of Nearest Airports to SYL
- List of Nearest Airports to SYL
- Map of Furthest Airports from SYL
- List of Furthest Airports from SYL
- Map of Nearest Airports to MER
- List of Nearest Airports to MER
- Map of Furthest Airports from MER
- List of Furthest Airports from MER
About this route:
A direct, nonstop flight between Roberts Army Heliport (SYL), Camp Roberts, San Luis Obispo County, California, United States and Castle Airport (MER), Atwater, California, United States would travel a Great Circle distance of 109 miles (or 175 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 relatively short distance between Roberts Army Heliport and Castle Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | SYL / KSYL |
Airport Name: | Roberts Army Heliport |
Location: | Camp Roberts, San Luis Obispo County, California, United States |
GPS Coordinates: | 35°48'53"N by 120°44'38"W |
Operator/Owner: | United States Army |
Airport Type: | Military |
Elevation: | 630 feet (192 meters) |
View all routes: | Routes from SYL |
More Information: | SYL Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | MER / KMER |
Airport Name: | Castle Airport |
Location: | Atwater, California, United States |
GPS Coordinates: | 37°22'50"N by 120°34'5"W |
Operator/Owner: | Merced County Department of Commerce, Aviation, and Economic Development |
Airport Type: | Public |
Elevation: | 191 feet (58 meters) |
# of Runways: | 1 |
View all routes: | Routes from MER |
More Information: | MER Maps & Info |
Facts about Roberts Army Heliport (SYL):
- The closest airport to Roberts Army Heliport (SYL) is Paso Robles Municipal AirportEstrella Army Airfield (PRB), which is located only 12 miles (19 kilometers) SE of SYL.
- The furthest airport from Roberts Army Heliport (SYL) is Pierrefonds Airport (ZSE), which is located 11,409 miles (18,361 kilometers) away in Saint-Pierre, Réunion.
- Because of Roberts Army Heliport's relatively low elevation of 630 feet, planes can take off or land at Roberts Army Heliport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
Facts about Castle Airport (MER):
- The closest airport to Castle Airport (MER) is Merced Regional Airport (MCE), which is located only 7 miles (12 kilometers) SSE of MER.
- Because of Castle Airport's relatively low elevation of 191 feet, planes can take off or land at Castle Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
- The furthest airport from Castle Airport (MER) is Tôlanaro Airport (FTU), which is located 11,312 miles (18,204 kilometers) away in Tôlanaro, Madagascar.
- Castle Airport covers an area of 1,360 acres which contains one runway with an 11,802 x 150 ft asphalt and concrete pavement.
- With its central location in the San Joaquin Valley, on the route of the proposed California High-Speed Rail system, and with a large, underdeveloped site, Castle Airport has been submitted as a possible location for the central maintenance facility for the system.
- Castle Airport (MER) currently has only 1 runway.