1-Foot Contours and Custom Color Depth Shading Will Help Anglers Find and Catch Fish Easier

C-MAP, a leader in digital marine cartography and cloud-based mapping, announced today the release of the second offering in its series of digital fishing map cards, Precision Contour HD – Tennessee. After an extensive survey campaign by C-MAP staff, the new card features highly detailed 1-foot contours, high-resolution satellite imagery and C-MAP’s one-of-a-kind Custom Color Depth Shading, as well as fishing and navigational Points Of Interest. The card is exclusive to chartplotters in the Navico portfolio of brands (Lowrance, Simrad and B&G).

The C-MAP survey fleet includes shallow-draft boats with surface-drive motors, enabling comprehensive coverage of every popular and important fishery in each state covered. Surveyed coverage includes most of the skinniest distant creek arms and shallowest backwaters, as well as key, fish-holding offshore structure like humps and holes, reefs and shoals, ledges and breaklines, sunken islands and points.

Precision Contour HD charts also feature C-MAP’s Custom Color Depth Shading* functionality, whichenables anglers to highlight specific areas of interest, including current fish-holding depths and potential hazard areas. Custom Color Depth Shading also enables adjustments to the chart display to reflect high- or low-water conditions that can affect the shape and edges of shorelines and submerged or partially submerged structures. Additional map-display features include four pre-set, depth-shading palettes, including Safety Shading.

The Precision Contour HD – Tennessee chart card contains the following C-MAP-surveyed waterbodies, as well as traditional data on other lakes in Tennessee.

Chickamauga Fort Loudon Watts Bar Kentucky Lake
Tellico Melton Hill Douglas Old Hickory
J. Percy Priest Nickajack

Following are the Tennessee Lakes featuring high-definition, non-surveyed, 1-foot contours.

Cherokee South Holston Normandy Woods Reservoir
Whipporwill Pinoak Bards Crawford Springs
Parker Creech Hollow Cumberland Mtn. Lake Herb Parsons
Robinson Dogwood Woodrun Lake No. 2 Laurel Hill


The C-MAP Precision Contour HD – Tennessee chart card is compatible with most Lowrance, Simrad and B&G chartplotters and is available for $149 USD. Purchase of the card includes a free one-year subscription to C-MAP’s Genesis Edge custom mapping service.

Additional C-MAP Precision Contour HD – Tennessee chart card information available at: https://www.lowrance.com/lowrance/type/mapping/list/

*Custom-Color Depth Shading is compatible with Lowrance HDS Gen 2, HDS Gen 3, Carbon, HDS Live and Elite Ti and Elite Tiunits. It is not compatible with Lowrance Hook, Lowrance Elite HDI, Elite CHIRP or Elite DSI units.

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About C-MAP
C-MAP offers the world’s largest marine navigation digital chart database, helping its customers explore the digital options and address the complexity of marine operations by providing integrated, intelligent information. C-MAP covers the world with accurate, up-to-date electronic charts, value-added data and services that let you sail safely to distant horizons, fill the boat with fish, or cruise with confidence. Following its recent acquisition by Navico, C-MAP is the fourth brand in Navico’s portfolio, joining Lowrance®, Simrad® and B&G®. For more information, please visit www.c-map.com.