Jump to content
  • GUESTS

    If You  want access  to member only forums on FM, You will need to Sign-in or  Sign-Up now .

    This box will disappear once you are signed in as a member.

  • 0

LakeMaster and Navionics - A comparison of the 2008 chips


schweady

Question

I have completed a couple of Excel spreadsheets that compare the lakes mapped on the latest LakeMaster and Navionics map chips.

One of them takes a look at the changes made as the 2006, 2007, and 2008 LakeMaster chips came out. Some of the information on the spreadsheet:

748 lakes appear in my 2008 list, 2 fewer than the 750 that LakeMaster lists as their total. I also list 126 ProMap lakes, 4 fewer than LakeMaster claims. This is perhaps due to 'North,' 'South,' 'Big,' 'Little,' etc. designations on some lake names. Some of it might just be human error... most likely mine. A year ago, 480 lakes appeared for the first time on the 2007 chip. 9 of them made their debut as ProMaps (High Definition). 14 additional lakes which were 5- or 10-foot contour lakes on the 2006 chip were upgraded to ProMaps for 2007. This time around, just 18 new lakes appear for the first time on the 2008 chip. 17 of them make their debut as ProMaps (High Definition). 29 additional lakes which were 5- or 10-foot contour lakes on the 2007 chip were upgraded to ProMaps for 2008. 18 lakes which appeared on the 2007 chip are no longer mapped on the 2008 chip: 10 in South Dakota, 7 in Michigan, and 1 in Iowa. (Perhaps they've reached the chip's storage limit??)

The other spreadsheet compares the most detailed lakes on the 2008 chips from the two manufacturers (LakeMaster ProMaps and Navionics High-Definition maps). Among other information:

My list for the updated LakeMaster 2008 Minnesota chip has 748 contoured lakes, including 126 ProMap lakes. (LakeMaster actually claims 750 contoured and 130 ProMap lakes in their advertising.) If it's wider coverage you're after (although they're mostly maps from public sources such as DNR, NOAA, USGS, USACE and others), Navionics lists an incredible 6,436 lakes with contours on their 2008 HotMaps Premium North chip. One caveat: I've found that Navionics' number is padded significantly by duplicate listings like "Red Lake (Upper)" and "Upper Red Lake," etc. and by many lakes listed once as a 'regular' map and again as a High-Definition map. 240 Navionics High-Definition survey lakes are listed here, along with 9 LakeMaster ProMaps that are on their chip, bringing the total to 249 very detailed lake maps.

Post an email address and I'll send you my chip comparison spreadsheet files.

Link to comment
Share on other sites

  • Answers 189
  • Created
  • Last Reply

Top Posters For This Question

  • schweady

    55

  • jwhjr

    5

  • IndyEFI500

    3

  • minn_man49

    3

Recommended Posts

  • 0

...and 2 more.

slammer: They're Microsoft Excel files.

Link to comment
Share on other sites

  • 0

Thanks a ton Schweady. Do either of them have any of the small lakes around your area? That is where I like to be (Niche, Little Mac, Paul). Not a big water kind of guy.

Link to comment
Share on other sites

  • 0

Just looked on the 07 LM Indy, none of the 3 you listed have depths (DNR maps).

Link to comment
Share on other sites

  • 0

There you go, DT...

Indy: Although none of the lakes you list are depth contoured, using one of the map chips provides far more accurate shoreline mapping detail not present in the gps unit alone.

Link to comment
Share on other sites

  • 0

Thanks for the help Schweady. Half the guys I work with want to see your work.

Link to comment
Share on other sites

  • 0

jasonyoungquist at yahoo dot com, please... I can't believe this is the first time I looked at this post! very cool idea thanx for the hard work

Link to comment
Share on other sites

  • 0

Could you please send me a copy and thanks for your work in putting this together.

Link to comment
Share on other sites

  • 0

4 more... and, harvey lee, it is my distinct pleasure. smile

Link to comment
Share on other sites

Guest
This topic is now closed to further replies.



  • Your Responses - Share & Have Fun :)

    • Brianf.
      ^^^45 in the morning and 47 in the evening
    • CigarGuy
      👍. What was the water temp in Black Bay? Thanks....
    • Brianf.
      No, that wasn't me.  I drive a 621 Ranger. 
    • CigarGuy
      So, that was you in the camo lund? I'm bummed, I have to head back to the cities tomorrow for a few days, then back up for at least a few weeks. Got the dock in and fired up to get out chasing some crappies till opener!
    • LakeofthewoodsMN
      On the south end...   Lots of ice on the main basin, but it is definitely deteriorating.  Some anglers have been fishing the open water at the mouth of the Rainy River in front of the Lighthouse Gap.  The rest of the basin is still iced over. Pike enthusiasts caught some big pike earlier last week tip up fishing in pre-spawn areas adjacent to traditional spawning areas.  8 - 14' of water using tip ups with live suckers or dead bait such as smelt and herring has been the ticket.  Ice fishing for all practical purposes is done for the year. The focus for the basin moving forward will be pike transitioning into back bays to spawn,  This is open water fishing and an opportunity available as the pike season is open year round on Lake of the Woods. The limit is 3 pike per day with one being able to be more than 40 inches. All fish 30 - 40 inches must be released. With both the ice fishing and spring fishing on the Rainy River being so good, many are looking forward to the MN Fishing Opener on Saturday, May 11th.  It should be epic. On the Rainy River...  An absolutely incredible week of walleye and sturgeon fishing on the Rain Rainy River.     Walleye anglers, as a rule, caught good numbers of fish and lots of big fish.  This spring was one for the books.   To follow that up, the sturgeon season is currently underway and although every day can be different, many boats have caught 30 - 40 sturgeon in a day!  We have heard of fish measuring into the low 70 inch range.  Lots in the 60 - 70 inch range as well.   The sturgeon season continues through May 15th and resumes again July 1st.   Oct 1 - April 23, Catch and Release April 24 - May 7, Harvest Season May 8 - May 15, Catch and Release May 16 - June 30, Sturgeon Fishing Closed July 1 - Sep 30, Harvest Season If you fish during the sturgeon harvest season and you want to keep a sturgeon, you must purchase a sturgeon tag for $5 prior to fishing.    One sturgeon per calendar year (45 - 50" inclusive, or over 75"). Most sturgeon anglers are either a glob of crawlers or a combo of crawlers and frozen emerald shiners on a sturgeon rig, which is an 18" leader with a 4/0 circle hook combined with a no roll sinker.  Local bait shops have all of the gear and bait. Up at the NW Angle...  Open water is continuing to expand in areas with current.  The sight of open water simply is wetting the pallet of those eager for the MN Fishing Opener on May 11th.   A few locals were on the ice this week, targeting pike.  Some big slimers were iced along with some muskies as well.  If you like fishing for predators, LOW is healthy!  
    • Brianf.
      Early bird gets the worm some say...   I have it on good authority that this very special angler caught no walleyes or muskies and that any panfish caught were released unharmed.        
    • smurfy
      got mine done........for the cabin.....ready for summer festivities!!!!!!   there was still frost in the ground...........but good gawd are the lakes low!!!!!
    • CigarGuy
      Just 1, 50" muskie🫣
    • SkunkedAgain
      How many walleye were on the stringer on their way out??? 
    • CigarGuy
      Saw the first boat of the year yesterday, heading towards Black Bay 
×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use and Privacy Policy. We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.