CONTENTS 



Page 



Abstract 1 



Introduction 1 



Materials and methods 2 



Chocolay River and major tributaries, Marquette County, Mich 2 



Little Garlic River, Marquette County, Mich 6 



Big Garlic River, Marquette County, Mich 10 



Ford River, Delta County, Mich 10 



Pensaukee River, Oconto County, Wis 16 



Ahnapee River, Kewaunee County, Wis 16 



Other streams tributary to Lakes Superior and Michigan 16 



Causes of changes in water quality 35 



Literature cited 35 



Appendix. Streams and sampling locations 3 7 



Lake Superior 37 



Chippewa County, Mich 37 



Luce County, Mich 37 



Alger County, Mich 3 7 



Marquette County, Mich 37 



Baraga County, Mich 38 



Houghton County, Mich 38 



Keweenaw County, Mich 38 



Ontonagon County, Mich 38 



Gogebic County, Mich 38 



Ashland County, Wis 39 



Bayfield County, Wis 39 



Douglas County, Wis 39 



St. Louis County, Minn 39 



Lake County, Minn 39 



Cook County, Minn 39 



Lake Michigan 39 



Mackinac County, Mich. 39 



Schoolcraft County, Mich 39 



Delta County, Mich 40 



Menominee County, Mich 40 



Marinette County, Wis 40 



Oconto County, Wis 40 



Door County, Wis 40 



Kewaunee County, Wis 41 



Manitowoc County, Wis 41 



Manistee County, Mich 41 



