How to merge ‘Winter Pool’ sonar data with ‘Summer Pool’ data — C-MAP Genesis Water Level Offsets Primer

This merged map, comprising 45 sonar-log files recorded at various times during a year of wildly varying water levels, is emerging as the most accurate and precise map of Lake St. Croix, because careful attention was paid to offsetting every sonar-log file to a standard water-level benchmark.

One of the best features of C-MAP Genesis is the ability to aggregate sonar data recorded in numerous trips over time in a complete, merged map. However, fluctuating water levels over time can impact the accuracy of aggregated maps if recorded water depths are not offset against a standard benchmark water level.

Naturally flowing rivers, dam-regulated river pools and vast reservoirs can all fluctuate greatly in water level from season to season, due to both natural and man-made forces. Natural forces include snowfall, rainfall and droughts. Man-made forces include flood-prevention measures and power-generation practices. Water levels are measured in feet above sea level. Continue reading

FLW Bass Fishing mag: C-MAP Genesis gives anglers ‘serious advantages’

C-MAP Genesis is making headlines again. FLW Bass Fishing magazine, in its Nov-Dec 2017 issue, says Genesis Edge, our premium custom-mapping service,  offers “serious advantages for tournament anglers who need to decipher patterns quickly and line up on prime spots more efficiently.”

We couldn’t agree more.

Genesis Edge is a premium upgrade to our free marine-mapping service, C-MAP Genesis (formerly known as Insight Genesis). While the free version includes unlimited downloads of community-sourced Social Map charts and custom-color depth shading, Genesis Edge offers even more. Its key features include sonar replay, an option to keep personally mapped areas private and creation of bottom-hardness and submerged-vegetation map layers.

Although several companies “have flirted with the concept” of custom mapping, FLW said, “perhaps none has figured it out as well as C-MAP Genesis.” Continue reading

Genesis Edge: How to opt out of subscription auto-renewal

In order to prevent interruption of service, annual and monthly Genesis Edge subscriptions default to auto-renew. This means that on the first day after your initial subscription period ends, a new subscription period and billing cycle of the same duration as the original will begin. You may, however, opt out of auto-renew by following these steps: Continue reading

C-MAP and Fishbrain partner to integrate maps and app

An innovative integration of map and app enables anglers to use historical catch locations to catch more and bigger fish in the future.

C-MAP, the leading supplier of digital marine cartography and cloud-based mapping solutions, and Fishbrain, the world’s largest angler-focused app and social network, launched a partnership that will show Genesis Edge subscribers tens of thousands of public Fishbrain catch locations on C-MAP Genesis charts online and let Fishbrain Premium subscribers see waypoints and their GPS position overlaid on C-MAP Genesis maps on their phone.

Genesis Edge is a premium upgrade to the free marine-mapping service C-MAP Genesis (formerly known as Insight Genesis). Fishbrain premium, an upgrade to the free app, provides anglers additional tools and insights designed to help them catch more and bigger fish. Continue reading

How to create and use a C-MAP Genesis bottom-hardness map layer to catch more and bigger fish

Many fisherman “beat the bank” because they have more confidence targeting visible cover. But the fish in those areas get pounded, making them harder to catch. With an C-MAP Genesis bottom-hardness map, however, you can fish the bottom as confidently as you do the bank, targeting offshore structure like hard-to-soft-bottom transitions and the fish-holding sweet spots on humps, reefs, and shoals, etc. This article will teach you how.

Although it’s a great fish-finding tool, StructureScan alone can’t really show you the size and shape of hard-bottom areas like gravel patches, clay slicks and shellbeds. But the C-MAP Genesis (formerly Insight Genesis) bottom-hardness layer can, making such areas stick out like “Fish Here!” signs on your map. It overlays onto your contour lines a color-coded representation* of the size, shape and location of areas of different bottom hardness: dark orange areas show the hardest bottom; a lighter orange indicates the next-hardest bottom; tan is the next-hardest bottom; and pale yellow shows the softest-bottom areas.
Continue reading

How to create custom-colored depth ranges on C-MAP Genesis maps


At a glance, C-MAP Genesis subscribers can now more quickly identify dangerously shallow areas, more efficiently troll the most productive portions of the water column, and more easily find fish-holding high spots surrounded by deeper water.

All that and more is now possible thanks to a new feature that allows C-MAP Genesis subscribers to select and set custom color palettes to highlight multiple depth ranges on the Insight Genesis maps they use on their compatible sonar/GPS units.*

It’s said that at any given time, 90% of the fish are in 10% of the lake — with this new feature, you’ll be able to easily highlight that fish-holding 10% on your map and catch more and bigger fish.