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Author Topic: [National] Not All Lake Maps Are The Same  (Read 835 times)

Offline rivermandave

[National] Not All Lake Maps Are The Same
« on: July 01, 2017, 04:54:45 PM »
The accuracy of any lake map i.e. depth map countour map bathymetric map hydrologic survey map begins with the data used for it's creation.

Some companies actually send folks out to do a "sounding" (data collection) for a lake.
Others will use either state or USGS data for the lake.

It wouldn't surprise me if companies use both.

I watched a video yesterday on Youtube about reading and using maps.

A Fishing Hot Spots map for Annabessacook Lake in Maine was used to make the video.

Out of curosity, I went to the Navionics website to compare what they had in reference to what I saw in the video.

Here's a screen shot of each of a specific area :oy:



Linkback: https://fishinpedia.com/bass-fishing-forums/state-fisheries-lake-maps-depth-maps/23/not-all-lake-maps-are-the-same/2458/

Offline rivermandave

Re: Not All Lake Maps Are The Same
« Reply #1 on: July 01, 2017, 04:58:14 PM »
This doesn't prove that FHS is better or more accurate than Navionics.

What it DOES show is that there can be differences in maps made by different companies when comparing specific lakes.

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