Depth contours of Blue Huron lake

Post By: cisum      Posted: 1/13/2018 5:48:05 AM     Points: 818    

I fish Blue Huron a lot, mostly by shore, sometimes by Canoe, does anyone know where I can find a Bathymetric map or anything similar to show the depths of the lake? I don't own a depth finder or anything else to estimate the depth I'm fishing , thanks