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Hamlin Lake Preservation Society

 

 

Protecting Hamlin Lake for Future Generations 

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East Section – 2007 Weed Survey

On May 31, 2007, we rode around Hamlin Lake in a pontoon boat attempting to keep weeds to the starboard and boatable water to the port of the boat.  Using a GPS we recorded the path of the boat.  Then on September 5, 2007, we repeated the process.  Comparing these two routes gives a measure of “boatable” surface area and where the weed beds are located.

On the map below, the area between the purple and the shore was where we found weeds already in place by Memorial Day.  The purple area then represents weed beds that formed between Memorial Day and Labor Day.

The edge of the weed beds in the East arm of Upper Hamlin Lake is subjective at best.  The weeds come close to the surface and deciding what is “boatable” and what would foul your prop depends on who does the survey.  We measured:

1

165

acres

Large Contiguous area

2

23.2

acres

Off Federal Rd 5707

3

16.8

acres

Off Jebavy Rd

Total

205

acres

This indicates that the weed beds increased by that much area during the summer of 2007.

  Hamlin Lake Preservation Society, PO Box 178, Ludington, MI 49431