A Mapbook includes a set of 49 maps which show county-level patterns of angler participation across the Upper Great Lakes states, in PDF format. The maps show the number of anglers, numerical change ...

The United States of America has natural vegetation and fascinating landscapes that enrich its splendid history. Proper lake ...

Take an underwater journey as researchers deploy sonar technology to map the lakebed to document organisms that call it home. The goal is to provide data to fishery and hatchery managers and those ...