Horizon is just OK
I use the Horizon 150 (b&w) and its OK but not good at long distance navigation. As soon as you zoom out, you lose the markers on the map. The colors are not coded correctly for the B&W display, so you can't tell black from red. The marked paths through the tricky parts of the lake are its best feature. Cordinates from Bizer's map (and electronic form) are the most accurate you will find. Using a GPS on the lake is fun. For example, set a course from Weirs to Meredith. Following the course allows you to worry less about catching a rock with your prop, sharpen your GPS skills, and get to see some nice parts of the lake.
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