FISHES OP' HOUGHTON COUNTY. 



Outline Hap of 



South Twin Lake 



in 



Sec. 32, T 53 N.R. 36 Vf. 



Scale 1 in. 800 ft. 



Reducei from C.R.R.R. Map. 



Nunber3 locate stations where t'.e 

 observations nere :r.av?e . 



Figure 1. 



sand or gravel, is present in most places. The water and bottom 

 are tinged with umber. 



South Twin lake received the most attention of the two. Stations 

 were located in typical habitats and rather detailed studies were 

 made at these places. Here again, the work was principally con- 

 fined to the shallow water. Upon the beaches were sedges, rushes, 

 and many other plants, forming in most places a thin grou-th of veg- 

 etation. A distinct zone of low shrubs, chiefly Myrica Gale (L.) and 

 Chamaedaphne calyculata (L.) Moench, almost completely surrounds 

 the lake just outside the beach region. Outside this is a zone of high 

 bushes, and then comes the timber region, which is mainly composed of 

 hardwoods but also includes many conifers, conspicuous among which 

 are some large white pines. 



The i)lants noted on the shoal were : 



Bulrushes. — Formed a scant groAvth over many shoals. Thick 

 patches were unusual. 



