The Mineral Resources of Greenland. D 
Fig. 2. Umiak. 
conditions make 6.5 km (four miles) per hour, or some 40 km (twenty- 
five miles) per day. The umiaks are about 12 meters (35 ft) long and 
wide of beam, and for inland lake work are excellent, since they are of 
shallow draft and, being light, can be carried from one water to another. 
Further, if а sudden storm arises, they can be beached on any but а 
vertical shore, and, by being turned upside-down, they furnish shelter. 
