re: Map card for Lowrance HDI 7

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Standard Mapping LA1 card. You can get one cheaper, like a google earth style card, but it won’t be as good.

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This is the card I was referring to - couldn't remember the name of the company when I posted earlier.

If anyone is fishing the marsh, they should want the most recent satellite imagery they can get. All the subsidence makes sunken marsh look like open water. If they're fishing the spillway, not so big a deal.