[1] It is located in the Northern Highland–American Legion State Forest and administered by the Wisconsin Department of Natural Resources.

The lake consists of two main basins that are separated by a narrow water passage.

In 1984, the two water basins that make up Little Rock Lake were separated by a plastic curtain.

Water quality, biological, geological and chemical cycles have also been monitored.

[3] In 2017, the National Ecological Observatory Network began to monitor the lake.