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A collection of survey maps of Tekonsha Township in Calhoun County, Michigan. The first survey map in this collection details all of Tekonsha Township and was drawn in January 1826. The second map details two islands in Nottawa Lake in Tekonsha Township; this survey was completed in October 1965.

A survey map of Tekonsha Township in Calhoun County, Michigan, drawn in January 1826.

A survey map of two islands in Nottawa Lake, located in Tekonsha Township in Calhoun County, Michigan. The survey was completed in October 1965.

Notes from the external lines survey covering boundaries in Hillsdale, Branch and Calhoun Counties, Michigan (see below for specific townships). These notes were compiled by John Mullett in 1825

Notes from the external lines survey covering boundaries in Hillsdale, Branch and Calhoun Counties, Michigan (see below for specific townships). These notes were compiled by John Mullett in 1825

Notes from the external lines survey covering boundaries in Hillsdale, Branch and Calhoun Counties, Michigan (see below for specific townships). These notes were compiled by John Mullett in 1825

Notes from the external lines survey covering boundaries in Hillsdale, Branch and Calhoun Counties, Michigan (see below for specific townships). These notes were compiled by John Mullett in 1825

Notes from the external lines survey covering boundaries in Hillsdale, Branch and Calhoun Counties, Michigan (see below for specific townships). These notes were compiled by John Mullett in 1825

Notes from the external lines survey covering boundaries in Hillsdale, Branch and Calhoun Counties, Michigan (see below for specific townships). These notes were compiled by John Mullett in 1825

Notes from the external lines survey covering boundaries in Hillsdale, Branch and Calhoun Counties, Michigan (see below for specific townships). These notes were compiled by John Mullett in 1825

Notes from the external lines survey covering boundaries in Hillsdale, Branch and Calhoun Counties, Michigan (see below for specific townships). These notes were compiled by John Mullett in 1825

Notes from the external lines survey covering boundaries in Hillsdale, Branch and Calhoun Counties, Michigan (see below for specific townships). These notes were compiled by John Mullett in 1825

Notes from the external lines survey covering boundaries in Hillsdale, Branch and Calhoun Counties, Michigan (see below for specific townships). These notes were compiled by John Mullett in 1825

Notes from the external lines survey covering boundaries in Hillsdale, Branch and Calhoun Counties, Michigan (see below for specific townships). These notes were compiled by John Mullett in 1825

Notes from the external lines survey covering boundaries in Hillsdale, Branch and Calhoun Counties, Michigan (see below for specific townships). These notes were compiled by John Mullett in 1825

Notes from the external lines survey covering boundaries in Hillsdale, Branch and Calhoun Counties, Michigan (see below for specific townships). These notes were compiled by John Mullett in 1825

Notes from the external lines survey covering boundaries in Hillsdale, Branch and Calhoun Counties, Michigan (see below for specific townships). These notes were compiled by John Mullett in 1825

Notes from the external lines survey covering boundaries in Hillsdale, Branch and Calhoun Counties, Michigan (see below for specific townships). These notes were compiled by John Mullett in 1825

Notes from the external lines survey covering boundaries in Hillsdale, Branch and Calhoun Counties, Michigan (see below for specific townships). These notes were compiled by John Mullett in 1825

Notes from the external lines survey covering boundaries in Hillsdale, Branch and Calhoun Counties, Michigan (see below for specific townships). These notes were compiled by John Mullett in 1825

Notes from the external lines survey covering boundaries in Hillsdale, Branch and Calhoun Counties, Michigan (see below for specific townships). These notes were compiled by John Mullett in 1825