RIA
RUSH, CO
CO33 is the identifier for Ria, a privately owned, non-towered airport in Rush, Colorado. The airport has 2 runways: 18/36 measures 2,600 feet long and 60 feet wide of turf, while Runway 08/26 is 2,000 feet long and 60 feet wide, also turf.
Operations are visual flight rules only, as no instrument approach procedures are published for the field. The strip is non-towered and has no published frequencies; pilots keep their own separation under standard see-and-avoid procedures. No fuel service is listed for the field. As a private-use facility, it is not open to transient traffic without prior permission from the owner.
The field rests at 6,172 feet above mean sea level. At that elevation, density altitude is a routine consideration in warm weather.