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A survey map of a small northwestern portion of Elm River Township in Houghton County, a small southwestern portion of Stanton Township in Houghton County, and a northeastern portion of Bohemia Township in Ontonagon County, Michigan, measured in 1845 and 1846.

Notes from the external lines survey covering boundaries in Houghton and Ontonagon Counties, Michigan (see below for specific townships). These notes were compiled by Austin Burt in 1846.

Notes from the external lines survey covering boundaries in Houghton and Ontonagon Counties, Michigan (see below for specific townships). These notes were compiled by Austin Burt in 1846.

Notes from the external lines survey covering boundaries in Houghton and Ontonagon Counties, Michigan (see below for specific townships). These notes were compiled by Austin Burt in 1846.

Notes from the external lines survey covering boundaries in Houghton and Ontonagon Counties, Michigan (see below for specific townships). These notes were compiled by Austin Burt in 1846.

Notes from the external lines survey covering boundaries in Houghton and Ontonagon Counties, Michigan (see below for specific townships). These notes were compiled by Austin Burt in 1846.

Notes from the external lines survey covering boundaries in Houghton and Ontonagon Counties, Michigan (see below for specific townships). These notes were compiled by Austin Burt in 1846.

Notes from the external lines survey covering boundaries in Houghton and Ontonagon Counties, Michigan (see below for specific townships). These notes were compiled by Austin Burt in 1846.

Notes from the external lines survey covering boundaries in Houghton and Ontonagon Counties, Michigan (see below for specific townships). These notes were compiled by Austin Burt in 1846.

Notes from the external lines survey covering boundaries in Houghton and Ontonagon Counties, Michigan (see below for specific townships). These notes were compiled by Austin Burt in 1846.

Notes from the external lines survey covering boundaries in Houghton and Ontonagon Counties, Michigan (see below for specific townships). These notes were compiled by Austin Burt in 1846.

Notes from the external lines survey covering boundaries in Houghton and Ontonagon Counties, Michigan (see below for specific townships). These notes were compiled by Austin Burt in 1846.

Notes from the external lines survey covering boundaries in Houghton and Ontonagon Counties, Michigan (see below for specific townships). These notes were compiled by Austin Burt in 1846.

Notes from the external lines survey covering boundaries in Houghton and Ontonagon Counties, Michigan (see below for specific townships). These notes were compiled by Austin Burt in 1846.

Notes from the external lines survey covering boundaries in Houghton and Ontonagon Counties, Michigan (see below for specific townships). These notes were compiled by Austin Burt in 1846.

Notes from the external lines survey covering boundaries in Houghton and Ontonagon Counties, Michigan (see below for specific townships). These notes were compiled by Austin Burt in 1846.

Notes from the external lines survey covering boundaries in Houghton and Ontonagon Counties, Michigan (see below for specific townships). These notes were compiled by Austin Burt in 1846.

Notes from the external lines survey covering boundaries in Houghton and Ontonagon Counties, Michigan (see below for specific townships). These notes were compiled by Austin Burt in 1846.

Notes from the external lines survey covering boundaries in Houghton and Ontonagon Counties, Michigan (see below for specific townships). These notes were compiled by Austin Burt in 1846.

Notes from the external lines survey covering boundaries in Houghton and Ontonagon Counties, Michigan (see below for specific townships). These notes were compiled by Austin Burt in 1846.

Notes from the external lines survey covering boundaries in Houghton and Ontonagon Counties, Michigan (see below for specific townships). These notes were compiled by Austin Burt in 1846.