The Ann Lake Subwatershed is a 0.40-square-mile subsection of the Riley Creek Subwatershed (a subsection of the Riley Purgatory Bluff Creek Watershed District) that drains to Ann Lake, which ultimately drains to Riley Creek.
|Average depth||16.8 ft|
|Max depth||40 ft|
|Watershed size||250 acres|
|Land draining directly into||105 acres|
|MPCA lake classification||Deep|
|Common fish||Bluegill, White Sucker, Black Crappie, Yellow Perch|
|Invasive species||Curlyleaf Pondweed, Eurasian Watermilfoil, Common Carp, Brittle Naiad|
- DNR Lakefinder - Get information on water levels, fish stocking, and water clarity.
- MPCA Surface Water Data - Find historical lake and stream water quality data.
- Metropolitan Council - View and download information on lakes, rivers, streams, rain gauges and for the Minneapolis/St. Paul metropolitan area.