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Notes from the external lines survey covering boundaries in Mackinac County, Michigan (see below for specific townships). These notes were compiled by Austin Burt for William A. Burt in 1840.

Notes from the external lines survey covering boundaries in Mackinac County, Michigan (see below for specific townships). These notes were compiled by Austin Burt for William A. Burt in 1840.

Notes from the external lines survey covering boundaries in Mackinac County, Michigan (see below for specific townships). These notes were compiled by Austin Burt for William A. Burt in 1840.

Notes from the external lines survey covering boundaries in Mackinac County, Michigan (see below for specific townships). These notes were compiled by Austin Burt for William A. Burt in 1840.

Notes from the external lines survey covering boundaries in Mackinac County, Michigan (see below for specific townships). These notes were compiled by Austin Burt for William A. Burt in 1840.

Notes from the external lines survey covering boundaries in Mackinac County, Michigan (see below for specific townships). These notes were compiled by Austin Burt for William A. Burt in 1840.

Notes from the external lines survey covering boundaries in Mackinac County, Michigan (see below for specific townships). These notes were compiled by Austin Burt for William A. Burt in 1840.

Notes from the external lines survey covering boundaries in Mackinac County, Michigan (see below for specific townships). These notes were compiled by Austin Burt for William A. Burt in 1840.

Notes from the external lines survey covering boundaries in Mackinac County, Michigan (see below for specific townships). These notes were compiled by Austin Burt for William A. Burt in 1840.

Notes from the external lines survey covering boundaries in Mackinac County, Michigan (see below for specific townships). These notes were compiled by Austin Burt for William A. Burt in 1840.

Notes from the external lines survey covering boundaries in Mackinac County, Michigan (see below for specific townships). These notes were compiled by Austin Burt for William A. Burt in 1840.

Notes from the external lines survey covering boundaries in Mackinac County, Michigan (see below for specific townships). These notes were compiled by Austin Burt for William A. Burt in 1840.

Notes from the external lines survey covering boundaries in Mackinac County, Michigan (see below for specific townships). These notes were compiled by Austin Burt for William A. Burt in 1840.

Notes from the external lines survey covering boundaries in Mackinac County, Michigan (see below for specific townships). These notes were compiled by Austin Burt for William A. Burt in 1840.

Notes from the external lines survey covering boundaries in Mackinac County, Michigan (see below for specific townships). These notes were compiled by Austin Burt for William A. Burt in 1840.

Notes from the external lines survey covering boundaries in Mackinac County, Michigan (see below for specific townships). These notes were compiled by Austin Burt for William A. Burt in 1840.

Notes from the external lines survey covering boundaries in Mackinac County, Michigan (see below for specific townships). These notes were compiled by Austin Burt for William A. Burt in 1840.

Notes from the external lines survey covering boundaries in Mackinac County, Michigan (see below for specific townships). These notes were compiled by Austin Burt for William A. Burt in 1840.

Notes from the external lines survey covering boundaries in Mackinac County, Michigan (see below for specific townships). These notes were compiled by Austin Burt for William A. Burt in 1840.

Notes from the external lines survey covering boundaries in Mackinac County, Michigan (see below for specific townships). These notes were compiled by Austin Burt for William A. Burt in 1840.

Notes from the external lines survey covering boundaries in Mackinac County, Michigan (see below for specific townships). These notes were compiled by Austin Burt for William A. Burt in 1840.