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Mapping Issues / Explorer Charts on Garmin

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Mapping Issues / Explorer Charts on Garmin

Old 05-17-2016, 07:44 AM
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Default Mapping Issues / Explorer Charts on Garmin

This weekend I was in West End fishing and noticed that my map was off by quite some distance. I am using a Garmin 7212 and the map source is from Lewis Offshore, explorer charts. When I was offshore West End the map was showing I was in 50ft of water but my depth sounder was recording about 600ft. It seemed to happen all the way along the coast of Grand Bahama up to White Sand ridge. Near Memory rock where the water is super clear, I could tell we were very deep (dark blue color) while the mapping program was stating we were in shallow 60 ft, depth sounds reading 800 ft or so. While I am back in the states, this does not happen as the maps seem very close to the depth sounder and even bottom contour. My question is, was I doing something wrong? or are the maps that far off over in the near Bahamas on the garmin chartplotters when using the explorer charts?
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Old 05-17-2016, 09:06 AM
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Last edited by bradv; 06-25-2016 at 05:59 PM.
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Old 05-17-2016, 11:49 AM
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Brad, Please let me know if they are any better as I was going to upgrade to the HD vision card. Thanks.

Tom
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Old 07-18-2017, 05:07 AM
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Did you ever figure this out? Did a new card work? I had the same issue with a 7212 this winter fishing out of west end, and am now having the same issue off the Abacos with a new boat and 8000 series.
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Old 07-18-2017, 06:59 AM
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Originally Posted by trit21 View Post
This weekend I was in West End fishing and noticed that my map was off by quite some distance. I am using a Garmin 7212 and the map source is from Lewis Offshore, explorer charts. When I was offshore West End the map was showing I was in 50ft of water but my depth sounder was recording about 600ft. It seemed to happen all the way along the coast of Grand Bahama up to White Sand ridge. Near Memory rock where the water is super clear, I could tell we were very deep (dark blue color) while the mapping program was stating we were in shallow 60 ft, depth sounds reading 800 ft or so. While I am back in the states, this does not happen as the maps seem very close to the depth sounder and even bottom contour. My question is, was I doing something wrong? or are the maps that far off over in the near Bahamas on the garmin chartplotters when using the explorer charts?
They truth is for many areas including where you were running the Garmin charts are inaccurate. It has been a glaring consistent problem for years. In the SE around Florida and the Bahamas, and particularly inshore proximate to land masses, the Garmin maps (as pretty as they may render on a unit) are the worst in the market on accuracy. The web is replete with posts such as yours regarding Garmin accuracy issues in the SE and regarding the poor quality of the imagery they provide. I have seen some other posts of Garmin issues in the Blue water at West End confirming exactly what you found but generally most of their Blue Water features are very similar to the other maps and have few complaints. There does seem to be a problem specific to the West End area based on the posts i have read. Garmin accuracy complaints are very common but rarely posted regarding offshore anomolies with almost all of them relegated to inshore areas proximate to land masses where boaters complain of the poor imagery, missing navigational features, and their maps showing them on land when they are floating.
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Old 07-18-2017, 07:42 AM
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The Garmin Cartography folks can be contacted directly regarding these issues:

cartography@garmin.com
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Old 07-18-2017, 09:40 AM
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Originally Posted by Todd Driscoll View Post
The Garmin Cartography folks can be contacted directly regarding these issues:

cartography@garmin.com

Contacting them is easy. But actually getting the maps fixed is a different matter. There are many posts over the years regarding this where the contact to Garmin is acknowledged by the company but subsequently ignored. In fact, I remember a post on a fishing website over a year ago regarding this exact same complaint for the same area where they said they reported the problem to Garmin and got a lack luster response.
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