Water depth charts

Caelan's Avatar


09 Feb, 2020 02:06 AM


Sorry if this is in the discussions somewhere. Figured it's easier to ask quick rather than sifting through multiple previous chats. Would you consider a map feature that can be toggled on/off when it comes to water topo/depth charts? Specifically for lakes. I'm aware of the "marine charts" layer. But that only shows The Great Lakes. Rivers are near impossible to chart since the current is always changing. But figured any "still" water ways might be a good thing to view. Not sure where you would pull the data from. Open source sonar websites or Department of Natural Resources, perhaps? Although I have found that DNR maps are highly outdated. Just another thought to add to your ever expanding list ;) "Spit balling" at this point.

Much obliged,


  1. 1 Posted by Caelan on 09 Feb, 2020 02:10 AM

    Caelan's Avatar

    Please disregard. Found it on the scanned 7.5 map layer.

  2. Support Staff 2 Posted by Ben Lantow on 09 Feb, 2020 04:47 PM

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    I was about to respond. Our scanned maps (or many of the scanned maps) have water depth. If there was an alternate source of data I'm sure we could import it or work with you to get it displaying.


  3. Ben Lantow closed this discussion on 09 Feb, 2020 04:47 PM.

  4. Caelan Switzky re-opened this discussion on 09 Feb, 2020 05:31 PM

  5. 3 Posted by Caelan Switzky on 09 Feb, 2020 05:31 PM

    Caelan Switzky's Avatar

    Hey Ben,

    I guess what I'm looking for is depth charts for smaller bodies of water.
    I'm near Madison, WI (but travel all over the state) where there's plenty
    of large lakes that have charts. But if you go anywhere.that has smaller
    lakes or even big ponds I was not able to find a map layer that showed
    depth for those. Side/down scan sonar is so popular now that I was thinking
    there has to be a place where open source data has been compiled. WI DNR
    maps are very outdated that I don't like relying on those. If you have
    additional thoughts just shout back. Otherwise I will work with what I
    have. This request would be specific to water recovery searches w/ K9's.


  6. Support Staff 4 Posted by Ben Lantow on 09 Feb, 2020 06:38 PM

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    We don't have anything like that. If you found a source we can typically import a lot of different sources to our maps so we can help get them visible for you.


  7. 5 Posted by sdrees289 on 12 Aug, 2020 04:39 PM

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    What about the use of Navionic data? Garmins been mapping and updating small bodies and rivers for years now.

  8. Support Staff 6 Posted by Meghan on 12 Aug, 2020 07:19 PM

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    If I'm not mistaken, it looks like Navionic data requires a subscription? Given that, it is unlikely that we would incorporate in this data source but I can submit it as a new feature request. If you come across any open source data, please feel free to share that with us.


  9. Meghan closed this discussion on 12 Aug, 2020 07:19 PM.

  10. sdrees289 re-opened this discussion on 26 Nov, 2020 11:12 AM

  11. 7 Posted by sdrees289 on 26 Nov, 2020 11:12 AM

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    Sorry to revive this old post. Discussions among a few agencies here on the East Coast we were complaining of the lack of good water charts. Only the coastal waters are marked with the old paper overlays. Many reservoirs, lakes, and rivers are missed. We do a lot of water based rescue also and would like to start using SARtopo for water searching also.

    I know Navionics has an API available. https://webapiv2.navionics.com/

    I've been searching the web for a similar API, KMZ, or KML to try also.

  12. Support Staff 8 Posted by Julie on 27 Nov, 2020 04:40 PM

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    Thanks, we're taking a look at it!

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