Favorite this☆ Mackinac Island blockhouse Description: Blockhouse forming part of the fortifications of Fort Mackinac. Three tourists by doors. Handwritten on photograph front: "Blockhouse, Mackinac Island." Details Resource ID: DPA0425 Subject: Fort Mackinac (Mackinac Island, Mich.) Fortification--Michigan--Mackinac Island Albumen prints Photographic prints Date Issued: Unknown year Format: 1 photographic print mounted on mat board ; image 3.25 x 5.5 in. Member of: Burton Historical Collection Filing Location: M/Localities-Mackinac Island Rights: Physical rights are retained by DPL. Copyright is retained in accordance with U.S. copyright laws.
