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Douglas Lake (& Maple River)

1934 Douglas Lake Bathymetric Map - UM Dept. of Surveying & Geodesy

2008 Douglas Lake Bathymetric Map - UM Marine Hydrodynamics Lab

Douglas Lake Bathymetry & Water Quality Assessment (PDF) - 2007.

Douglas Lake Profile, 1972 - pdf describing basic characteristics.

Inland Lake Study, Clean Earth Corps 1971 - pdf describing Douglas Lake work begun from Earth Day 1970.

SFBay Ice Data; Ice In = 4 January 2016.  Ice out = 18 April 2015.

Douglas Lake Levels - monthly data beginning 1922, with graphs.

Latest fish census of Douglas Lake - 2014 work by Neal Godby & Tim Cwalinski


Water Chemistry Profiles - Temp., pH, DO, Cond. 

South Fishtail Bay Depression

Pells Island Depression


Nutrient Profiles - N, P, cations, etc.


Alkalinity Profiles - Carbon dioxide & alkalinity.

Zebra mussels in Douglas Lake - Census data from 2003, 04, 05; they were first discovered in our lake in 2001.

Zebra mussels census data from 2009 & 2011.

East Branch - Maple River, Stream Lab Intake Water Chemistry - Data from 1997 forward

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