13] STUDY OF SOUTHERN WISCONSIN FISHES— CAHN 13 



by rivers. These chains lie in a general northeast-southwest direction, 

 and are the courses of the Oconomowoc and Bark rivers. Of the five 

 river systems listed, it is of interest and importance to note that of the 

 twenty-eight most important lakes of the county, no less than eighteen 

 fall into these two chains, a condition which permits the passage back and 

 forth of at least the smaller species of fishes, and of the fry of the larger 

 species. The relation existing between the lakes and the river systems is 

 indicated herewith : 



1 . Oconomowoc river system : 



1. Lake Keesus. 6. Garvin Lake. 



2. North Lake. 7. Oconomowoc Lake. 



3. Pine Lake. 8. Fowler Lake. 



4. Beaver Lake. 9. Lac La Belle. 



5. Okauchee Lake. 



2. Bark river system: 



10. Nagawicka Lake. 15. Crooked Lake. 



11. Upper Nashotah Lake. 16. Golden Lake. 



12. Lower Nashotah Lake. 17. Hunter's Lake (Scuppernong creek 



13. Upper Nemahbin Lake. and river). 



14. Lower Nemahbin Lake. 18. Dutchman's Lake (Scuppernong 



creek and river). , 



3. Fox river system: 



19. Pewaukee Lake. 



20. Muckwonago Lake. 



21. Phantom Lake (Muckwonago river). 



22. Eagle Lake (Muckwonago river). 



23. Lulu Lake (Muckwonago river). 



24. Millpond Lake (Muckwonago river). 



4. Ashippun river system: 



25. Ashippun Lake. 



The Menomonee river receives the water from no lake within the limits of 

 the county, while there are nine lakes of some importance that have 

 neither inlet nor outlet: 



1. Genesee Lake. 6. Henrietta Lake. 



2. Otis Lake. 7. Silver Lake. 



3. Duck Lake. 8. Pretty Lake. 



4. Mouse Lake. 9. Little Silver Lake. 



5. Forest Lake. 



The Ashippun river, a small stream which rises to the northward in 

 Dodge county, enters Waukesha county from the north, then bending 

 sharply westward, drains a narrow valley in the northwest corner of the 

 county. It is a slow, shallow stream which flows for the most part between 



