Adirondack Beaver 129 



ing the outlet of Lower Gull Lake. Seven dams were encountered 

 on this stream. Two of these were the highest found in this region, 

 and are located about half way between Lower Gull and Big Moose 

 lakes. The lower dam was 119 feet long and 6 feet high at the 

 stream's channel. The upper one was 146 feet long and measured 

 8 feet, 8 inches in height. The banks of the creek are here 

 rather steep, the area covered by the ponds above the dams was very 

 small and the damage by flooding negligible. These dams were of 

 several years' standing (figure 6). 



2. Tzvitchell Lake Region. Twitchell Creek, just west of the 

 road, presents a stretch of timber of respectable size killed by beaver 

 flows of past years, although in this part of the creek I saw no evi- 

 dence of present activity. Figure 7 is a typical example of what I 

 found along this creek for a distance of about a mile below the road. 

 Three abandoned lodges and three old dams that evidently had been 

 torn out by human hands were observed in this distance. 



The ponds and lakes in the Big Moose-Twitchell lakes region, 

 which were visited and found to have dams across their outlets, are 

 Chub Pond, May's Pond, Big Chief Pond, Russian Pond, lower Two 

 Sisters Lakes, Lower and Upper Gull lakes and Queer Lake. At 

 the outlet of the last named is a recently constructed dam as yet 

 small so that the water level of the lake has not been seriously 

 affected. On the outlet creek of Russian Pond is a dam about 65 

 feet long and 2 feet, 6 inches high, situated approximately 40 

 rods below the pond itself (figure 8). The dam has not damaged 

 the pond because of the slope of its shores, but between the pond 

 and the dam is a belt of drowned timber averaging probably 65 to 

 70 feet in width. The timber is mostly small spruce and the amount 

 of damage is not serious. Below the dam the creek is about ten feet 

 wide. 



At the outlet of Lower Gull Lake is a dam about 90 feet long and 

 2 feet, 6 inches high, followed by two smaller dams at seventy- 

 five foot intervals down-stream. The shore line of the lake has a 

 fringe of dead trees, small or medium sized, which varies perhaps 

 from 30 to 50 feet in width. The dam at the outlet is shown in 

 figure 9, while figure 1 1 shows a flooded bay on the west shore. 



Upper Gull Lake presents similar conditions but at the time of 

 my visit the water had gone down considerably as the result of dis- 

 repair of the dam at its outlet. 



The lower of the Two Sisters Lakes has a narrow fringe of dead 

 trees of small size along the north shore and in a bay east of the 



