STATISTICS:  Miles of railroads in operations in Michigan this year:  138.  [MRC/72]

July 4:  Central line reaches Dexter from Ann Arbor.  [MHS]  [MCR-75] dates this as June 30, 1841.

September:  Central line  reaches Chelsea.  [DWS]

Autumn:  The Detroit & Milwaukee extends their line from Royal Oak to Birmingham.  [MCR-75]  Also listed in 1838 by other sources.

December 29:  The Central road reaches Jackson from Chelsea.  [MCR-75/MDOT/AAD]

Julius Eldred leads a well-publicized campaign to remove "the Ontonagon (copper) boulder" from the Ontonagon River and display it in Detroit.  It was subsequently moved to the Smithsonian Institution in Washington, D.C.  [BOM]