Slide Box: 2 Small Boxes: Big Creek Drain Study-Arenac County (June 1979); 37 slides total; 4 Small
Box 5, F 1
1977; 25 slides total; -Small Box 2: August-November 1977; 19 slides total; -Small Box 3: April-May[...] 1978; 22 slides total; -Small Box 4: June 1978; 12 slides total; 1 Small Box: Faith Johnston at