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GLO Resources - Original Island Surveys

North and South Manitou Islands were originally surveyed by Orange Risdon and his crew in the summer of 1847, as described in the article Orange Risdon and the Original Islands Survey

The materials and information listed below have been made available by the General Land Office (GLO), U.S. Bureau of Land Management - Eastern States, and others as noted.

Orange Risdon Survey Maps

Note: Maps are MrSID compressed images. Download Windows or Mac OS-X browser plug-in.

Composit Survey Maps
  • North Manitou Island View, or download large format TIF image
  • South Manitou Island View, or download large format TIF image
Orange Risdon Survey Field Notes
Helpful Literature