C-MAP Discover North America Lakes Map Card
- Map Type: North America
- Unit Count: 1
- Color: Black
- Item Weight: 0.09 pounds
Last refreshed Jul 5, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A solid lake chart upgrade for the specific plotter models it lists, and a wasted purchase for anyone outside that list.
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ASIN: B08RR4N5ZMCategory: Fishing Charts & Maps
Overview
This is a Micro SD chart card carrying C-MAP Discover vector charts for US and Canada lakes, built to plug into a compatible Lowrance, Simrad, or B&G chartplotter. It replaces or expands the unit's built in coverage with routing and bathymetry data, no subscription required.
The card ships programmed and must be removed from its SD adapter before use, since the plotter reads the Micro SD directly. Its value depends entirely on owning one of the listed head units: HDS Live, HDS Carbon, HDS Pro, Elite Ti2, Eagle, and the NSS/NSO evo2 and evo3 lines are named as compatible, nothing else is. The 12 months of chart updates included at purchase is a one time benefit at the point of sale, not an ongoing subscription.
- Vector charts from official hydrographic data
- Micro SD Discover chart card format
- Custom depth shading and paper-like view options
- 12 months of chart updates included at purchase
Who it's for
Freshwater anglers and lake boaters who already run a compatible Lowrance, Simrad, or B&G plotter and want denser lake detail than the factory basemap provides. Not for owners of other chartplotter brands or models outside the listed series.
Pros and cons
- Wide lake coverage across the US and Canada
- Subscription free autorouting with 12 months of updates included
- Bathymetry layer helps locate drop offs and structure
- Compatible only with specific Lowrance, Simrad, and B&G models
- Must be removed from its SD adapter before use
- Focused on lake coverage, not full coastal detail
Performance notes
The charts are vector based, drawn from official hydrographic office data, so detail can be redrawn and layered rather than shown as a flat scanned image. The high resolution bathymetry layer adds contour detail for shallows, drop offs, and humps, useful for locating structure while fishing. Autorouting plots a route from the chart data and the boat's stored dimensions without needing an internet connection or ongoing fee.
Specifications
| Brand | C-MAP |
|---|---|
| Dimensions & fit | |
| Item Weight | 0.09 pounds |
| Item Dimensions L x W | 5.8 × 4.1 inches |
| Paper Size | 5.83 x 4.09 Inches |
| Construction & materials | |
| Color | Black |
| Included components | |
| Unit Count | 1 |
| Included Components | C-MAP Discover North America Lakes US/Canada Chart Card |
| Warranty & support | |
| Warranty Description | 2 years |
| Other details | |
| Map Type | North America |
| Item Type Name | cartography |
| Part Number | M-NA-Y200-MS |
Frequently asked questions
Which chartplotters work with the C-MAP Discover North America Lakes card?
It is compatible only with specific Lowrance, Simrad, and B&G models: HDS Pro, HDS Live, HDS Carbon, Elite-FS, Elite-Ti2, Elite-Ti, Eagle, and the NSS evo2/evo3 and NSO evo2/evo3 series.
Does the C-MAP Discover card require a subscription?
No. Autorouting and the included chart updates work without an ongoing subscription, covering the first 12 months of updates at purchase.
How do I install the C-MAP Discover Micro SD card?
Remove the Micro SD card from its SD adapter first, since most chartplotters read the Micro SD directly rather than the adapter.