Colesdalen is a valley in Nordenskiöld Land at Spitsbergen, Svalbard. The valley debouches into the bay Colesbukta, at the southern side of Isfjorden.[1]
Colesdalen is located north of the Nordenskiöld Land National Park, but not included in the park, due to mining interests.[2]
The Coleselva River flows through the valley.[1]
78°05′12″N 15°08′00″E / 78.08667°N 15.13333°E