The Garmin LakeVu HD features more than 17,000 total lakes, of which more than 5,700 are HD maps with 1 foot contours shoreline to shoreline.
The Ultimate Freshwater Fishing Map
These are the most feature-rich freshwater maps Garmin has ever offered. MaxDef maps bring the greatest possible detail to your chartplotter. LakeVü™ HD Ultra gives you everything available with LakeVü™ HD and adds even more features and precision.
MaxDef Lakes -- A Commitment to Accuracy
Garmin has invested in their own fleet of survey boats equipped with ultra-sensitive sonar technologies. This fleet is cruising lakes and rivers throughout the U.S., creating our own exclusive ultra-high detail maps - a level of detail that's unprecedented in recreational mapping. We started with the most popular fishing lakes and are traveling around the country adding more lakes all the time. These are Garmin exclusive MaxDef lakes.
Auto Guidance (More Than 5,700+ HD Lakes)
A Garmin exclusive, Auto Guidance directs you to your hot spots quickly by instantly creating an on-screen path for your boat to follow that avoids shallow water and other charted obstructions. Shown with MarinerEye view.
High Resolution Relief Shading (More Than 5,700+ HD Lakes)
High Resolution Relief Shading adds visual depth to the 2-D map making it easier to interpret contours and find fish holding structure.
Dynamic Lake Level (More Than 5,700+ HD Lakes)
Allows you to adjust your maps to the lake's current water levels giving you a better idea of spots that are either accessible or too shallow to explore.
Depth Range Shading (More Than 5,700+ HD Lakes)
Displays high-resolution Depth Range Shading to view your designated target depth. If you know the fish are biting between 10' and 15' you can mark that depth range.
FishEye View (More Than 5,700+ HD Lakes)
Underwater perspective shows 3-D representation of lake bottom and contours as seen from below the waterline. Interface with sonar data for customized view.
Sonar Imagery (More Than 40+ MaxDef Lakes)
Shows a nearly photographic view of the bottom, as if all the water had been drained away.
Surface and Side Scan Photos (More Than 40+ MaxDef Lakes)
Gives you a clear visual reference of notable spots above and structure below the surface of the water.
Features detailed coverage of more than 17,000 freshwater lakes, reservoirs and rivers throughout the continental U.S.
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Baltimore’s Inner Harbor and the rivers that flow into it are important sources of water to Chesapeake Bay, popular recreation sites and the targets of an ambitious clean-up plan. But the city has for some time lacked an environmental monitoring system for tracking water quality in the harbor continuously. That is about to change, thanks to a collaboration between the U.S. Geological Survey (USGS) and Environmental Protection Agency (EPA). It will lead to the new installation of a suite of sensors that will provide the public and scientists with the first comprehensive, real time look at water quality in the harbor.Read More
A parasite that caused a massive fish kill in Montana’s Yellowstone River has been found in at least seven other rivers in the state, according to the Bozeman Daily Chronicle . Scientists with the Montana Fish, Wildlife and Parks department made the find. So far, the parasite has been confirmed in the upper and lower Madison, East Gallatin, Bighorn, Stillwater, and Boulder Rivers. It had already been confirmed in the Jefferson and Shields Rivers. The microscopic parasite causes proliferative kidney disease, one of the most serious diseases to impact whitefish and trout. The effect of the disease on Yellowstone’s fish populations is exacerbated by other stressors like near-record low flows, consistent high temperatures and the disturbance caused by recreational activities.Read More
It may have taken 20 years and $20 million to develop, but Lake Erie researchers working to fight harmful algal blooms (HABs) now have a new tool to safeguard drinking water: ESPniagara. The advanced sampler has been called a “lab in a can” for its ability to sample microcystins, the most common algal toxin these days, in almost real time. The big gadget’s name is a mashup between “ESP,” for environmental sample processor, and the name of Admiral Oliver Hazard Perry’s ship during the War of 1812. “We wanted to name it something that was significant to Lake Erie,” said Tim Davis, molecular biologist and lead HABs researcher at the National Oceanic and Atmospheric Administration’s Great Lakes Environmental Research Lab (NOAA GLERL) in Ann Arbor, Mich.Read More