A Biological Survey of the Muskegon and West Branch Muskegon Rivers in Clare, Missaukee and Roscommon Counties. - 1994 - (MDEQ).

A Biologicial Survey of the Upper Muskegon River in Missaukee and Roscommon Counties - 1989 - (MDEQ)

Archived Superfund Sites - (EPA) - Listing of archived superfund sites by Michigan County.

Demographic, health status and health systems indicators for Center Michigan Health Department

Economy of Roscommon County - (MI Economic Dev. Corp)

Effects of Residential Development on the Water Quality of Higgins Lake - 1995-99 study of the effects of residential development on the water quality of Higgins Lake.

Emerald Ash Borer Quarantine - Roscommon County - (MDA) - map of the area of quarantine for the emerald ash borer.

General Land Office Plats - Roscommon County

Higgins Lake Watershed Management Plan - a management plan for nonpoint source pollution reduction.

Inland Lake Maps by County - (MDNR) - maps give contour and other lake information

Inland Lakes Sediment Trends: Sediment Analysis Results for Five Michigan Lakes - (MDEQ & MSU) - activities and findings of the first year (99-00) of sediment trend component - Higgins Lake is one of five lakes.

Michigan Lake Finder - database of Michigan lakes by name, county or fish species. Also, gives depth, acreage and fish species of each lake.

Water Area amd Land Area Percentages by County