I wanted to let everyone know that I just completed a library of topo maps which includes maps of all lakes/rivers in the United States. You can also make maps for any location in the state (rivers, reservoirs, streams, etc.) by clicking on the Map Creator Link which is the second link. Click the TOPO tab and double click on the map to zoom in on each map.
U.S. Lakes and Rivers:
U.S. Topo Fishing and Outdoor Maps & Locations Directory | MyFishMaps.com
Map Creator:
Fishing Maps - Track Catches, Contests and Chat | MyFishMaps.com
Enjoy using these maps - I hope they help with your fishing trips.
Wonderful use of Google Maps API