Cienega Redonda is a swamp located in Rio Arriba County, New Mexico. It appears on the Polvadera Peak USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 9,772.57 feet (2,978.68 m) above sea level. The nearest populated place is Vallecitos Corrales, approximately 7.2 miles to the ENE.