Navionics State Selectable Chart of Marine and Lakes USA MSD/DWL-S - $99.99

Provides all the freshest data coverage you need. With this prepaid chip, simply visit and select a state (California, Texas and Florida are split into two selectable regions). Once selected, Navionics extensive, 17,000-lake database delivers updating regional lake charts and data up to 10,000 changes per week. Regions bordering the Great Lakes or coastlines get marine coverage out to three nautical miles. Type: Lake Map Software. - $99.99