A continuous record of daily stream temperature has been obtained. Mean 
monthly fresh-water temperatures were found to be moderate. Maximum monthly 
mean for Maybeso Creek was 54.0° F., Harris River 55.1° F., Indian Creek 
56.8° F., and Old Tom Creek 57.4° F. Maximum water temperatures were 
also moderate. The highest temperatures recorded were 66.0° F., occur- 
ring in Indian Creek and Old Tom Creek. Duration of these temperatures 
was only 1.5 hours in both streams. The lowest temperature recorded in 
any stream was 30.0° F. The longest duration of this temperature was 
ll hours. Stream temperatures of 32° F. were common. A layer of ice 
6 to 12 inches thick may form in the streams during extended periods of 
cold weather, but the streams usually continue to flow under this ice 
layer. 
Mapping of all streams was begun in 1949 to determine the extent of 
natural stream channel change, including such factors as (1) amount of 
debris, (2) number and size of log jams, (3) change in streambed composi- 
tion, (4) streambank cutting, and (5) change in pools, riffles, gravel 
bars and stream channels. 
Several methods are being used to determine stream sedimentation. These 
include collection of suspended sediment and streambed gravel samples, 
establishment of cross sections to determine movement of streambed 
material and streambank cutting. An intensive study is being made to 
determine the movement of fragmental debris in an intertidal zone. 
Thirty-three cross sections, established at the confluence of two of 
the study streams, reveal that considerable movement of streambed 
material takes place under natural conditions. A net deposition of 
approximately 556 cubic yards of material occurred between July 1953 and 
July 1954 in a 200-foot section of the intertidal zone. 
This report presents the results of research for the first five-year 
period. Continuing observations will be made to determine the effect 
of logging on all of these factors, 
