2007.001.338.054--COPR--Map Showing Location of Proposed Coal Dock Houghton MI--no date 2007.001.338.054--COPR--Map Showing Location of Proposed Coal Dock Houghton MI--no date
2007.001.338.058--COPR--Sketch Map Showing Location of Road Crossing near Mich Smelts--1916 0608 2007.001.338.058--COPR--Sketch Map Showing Location of Road Crossing near Mich Smelts--1916 0608
2007.001.338.068--COPR--Map of Location at Portage Lake Bridge--no date 2007.001.338.068--COPR--Map of Location at Portage Lake Bridge--no date
2007.001.338.119--COPR--Station Map Portage Lake Bridge to Roundhouse Houghton MI--no date 2007.001.338.119--COPR--Station Map Portage Lake Bridge to Roundhouse Houghton MI--no date
2009.005.6.198--COPR--Map of Station Grounds at Range Junction MI--1900 0200
2009.005.6.261--COPR--Proposed Watersmeet Extension--1902 0118
2009.005.6.356--COPR--Depot and Tracks at Belt Mine--1900 0123
2009.005.9.035--COPR--Station Grounds At Lake Linden MI with Contours--1903 1204
2009.005.9.077--COPR--Topography at Mill Mine Jct and Proposed Change of Depot--1911 0911
2009.005.9.236--COPR--Map Showing Proposed Coal Dock and Storage Bin--1900 0716
2009.005.9.237--COPR--Turntable and Roundhouse Area Houghton MI--no date
2009.005.9.242--COPR--Map Showing Cheynoweth Property Houghton MI--1901 0117
2009.005.9.243--COPR--Map Showing Cheynoweth Property Houghton MI--1900 0915
2009.005.9.297--COPR--First Proposal Trimountain Mining Co Arrangement of Tracks and Buildings--no date
2009.005.9.301--COPR--Plan Showing Change of Quincy Launders At Old Stamp Mill--1902 0429
2009.005.10.152--COPR--Map of Location of Copper Range RR McKeever MI--1899 0712
2009.035.014--COPR--Map Showing Location of Painesdale MI Branch--1901 0100 2009.035.014--COPR--Map Showing Location of Painesdale MI Branch--1901 0100
2009.035.015--COPR--Map Showing Location of Harbor Mines--1891 0105 2009.035.015--COPR--Map Showing Location of Harbor Mines--1891 0105
2012.003.079--COPR--Map Showing Existing and Projected Railroad Lines Between Calumet Mohawk and Gay MI--1906 1009
