SLEDS AND SLED-HAULING 



167 



the entrance of snow. The height and width of the sheds is 

 dependent on the size of the sleds used and the maximum height 

 of loads hauled. 



The cost of two-sled roads ranges from $150 to $800 per mile, 

 the average seldom exceeding $500. 



Fig. 40. — A Snow Shed on 



Photograph by D. N. Rogers 



Two-sled Road. Maine. 



They require at least from 8 to 1 2 inches of snow for successful 

 operation and in the Lake States and the Northeast conditions 

 are seldom favorable for their use until the middle or latter part 

 of December. Hauling begins at this time and continues without 

 interruption until the logs are all on the landing, or until the 

 season breaks up and the snow leaves the roads. 



Three machines play an important part in the maintenance 

 of a main two-sled road; namely, the snowplow, the rutter and 

 the sprinkler. They are frequently made by the camp black- 



