1940s Maps of Keweenaw County, Michigan
Explore 31 historic maps of Keweenaw County from the 1940s. These maps offer a rare glimpse into what life looked like during the 1940s — showing old roads, neighborhoods, homes, and landmarks that have changed or disappeared over time.
Whether you're researching your family's past, planning a metal detecting trip, or studying how Keweenaw County's landscape evolved across the 1940s, these high-resolution maps are a powerful tool for exploring the history of this region.
- Focus on a specific era: All maps on this page are from the 1940s, giving you a focused view of this time period.
- See what’s changed: Compare century-old streets, trails, and buildings to today's modern landscape using overlays and satellite layers.
- Research with precision: Use these maps for genealogy, historical research, land use analysis, or educational projects.
- View, download, or print: Maps are fully viewable online in high resolution, and can be downloaded or printed for your own records.
Start exploring Keweenaw County's history through authentic maps from the 1940s. This is your window into the past.
Keweenaw County, MI maps
(31)- 1940 Map of Deer Lake
1940 Deer Lake1940 Print · USGSThe Keweenaw Peninsula shoreline comes alive in the late 1930s as aerial photography reveals the remote coastal reaches of Lake Superior. Researchers can trace the drainage of the Big Betsy River or locate the site of the Betsy River Sch and Black Rock Pt. - 1940 Map of Manitou Island
1940 Manitou Island1940 Print · USGSThe tip of Michigan's Keweenaw Peninsula and the outlying Manitou Island are shown in 1940 just before the war. Marine historians and local researchers can locate navigation landmarks like the Manitou Island L H and Gull Rock L H. - 1940 Map of Fort Wilkins
1940 Fort Wilkins1940 Print · USGSThe northern tip of the Keweenaw Peninsula is captured here in the late 1930s as the region's wilderness and maritime history began to be preserved. Researchers can trace the layout of Fort Wilkins State Park and locate landmarks like the Copper Harbor L H and Keystone Pt.2 unique versions available - 1940 Map of Central
1940 Central1940 Print · USGSKeweenaw Peninsula's rugged copper country comes into focus in this pre-war survey of the Lake Superior coastline. Genealogists and historians can trace the legacy of mining at Central and Copper Falls or locate the historic Eagle Harbor L H and the local Central Fire Tower. - 1940 Map of Lake Medora
1940 Lake Medora1940 Print · USGSKeweenaw's rugged northern tip is captured in the 1940s as a landscape of mining history and new tourism. Trace the early routes of Brockway Mountain Drive and find the site of Aetna near Lake Manganese. - 1941 Map of Ahmeek
1941 Ahmeek1941 Print · USGSThe Keweenaw copper district thrived in the early 1940s, when mining towns were connected by a dense web of steam rail. Genealogists and historians can trace the foundations of Allouez, Wolverine, and the Ahmeek Mine as they stood before mid-century changes. - 1941 Map of Mohawk
1941 Mohawk1941 Print · USGSThe Keweenaw Peninsula's copper country comes into focus just before World War II, showing a landscape shaped by mining and rail. Researchers can trace the industrial corridor from Mohawk to Hebards via the Keweenaw Central Railroad and find the Gratiot Mine. - 1946 Map of Phoenix, 1965 Print
1946 Phoenix1965 Print · USGSThe Keweenaw Peninsula’s northern shore in the 1940s reveals a mix of maritime infrastructure and copper-era transport. Researchers can trace the path of the Keweenaw Central Railroad or locate the Eagle River Cem and the coastal Sand Hills Lighthouse Coast Guard Sta.4 unique versions available - 1946 Map of Bruneau Creek, 1967 Print
1946 Bruneau Creek1967 Print · USGSThe Keweenaw Peninsula interior comes into focus during the mid-forties, showing the wild drainage basins between Houghton and Sherman. Trace the intricate water networks of Lake Gratiot, the slopes of Mt Horace Greeley, and the headwaters of the Tobacco River.3 unique versions available - 1946 Map of Mohawk, 1967 Print
1946 Mohawk1967 Print · USGSThe copper country of the Keweenaw Peninsula is captured here in the mid-1940s as mining and rail operations defined the local economy. Genealogists and industrial historians can trace the footprint of the Gratiot Mine, the Calumet and Hecla RR, and company towns like Mohawk and Fulton.3 unique versions available - 1946 Map of Muggun Creek, 1967 Print
1946 Muggun Creek1967 Print · USGSThe Keweenaw Peninsula's rugged shoreline meets the water in the mid-1940s, highlighting critical municipal infrastructure. Researchers can trace the coastal utility sites at Tamarack Waterworks and Calumet Waterworks along the banks of Muggun Creek.2 unique versions available - 1946 Map of Eagle Harbor, 1968 Print
1946 Eagle Harbor1968 Print · USGSThe Keweenaw Peninsula coastline in the mid-1940s reveals a landscape defined by maritime safety and the aging infrastructure of the copper boom. Researchers can locate the Eagle Harbor L H, trace the Old Railroad Grade, and find inland mining-era sites like Copper Falls and Central.3 unique versions available - 1946 Map of Ahmeek, 1971 Print
1946 Ahmeek1971 Print · USGSThe Keweenaw copper district comes alive in the 1940s, showing the dense network of mining locations and company towns. Trace the industrial operations of the Ahmeek Mine and Red Jacket Mine alongside settlements like Bumbletown and Copper City.3 unique versions available - 1947 Map of Phoenix
1947 Phoenix1947 Print · USGSKeweenaw copper country meets the Lake Superior shore in the mid-1940s, showing the early post-war industrial landscape. Genealogists and historians can trace family ties at Eagle River Cem, locate the Coast Guard Sta, or follow the Old Railroad Grade past Phoenix. - 1947 Map of Ahmeek
1947 Ahmeek1947 Print · USGSKeweenaw's Copper Country is seen here at a post-war peak of industrial settlement and mining activity. Researchers can trace the extensive Calumet and Hecla rail network and locate historic sites like Ahmeek Mine and Centennial Heights.2 unique versions available - 1948 Map of Muggun Creek
1948 Muggun Creek1948 Print · USGSLake Superior's shoreline in Houghton and Keweenaw Counties is documented here just after the war. Local researchers can trace early infrastructure like the Tamarack Waterworks and Calumet Waterworks or follow the paths of Muggun Creek and Brewery Cr.2 unique versions available - 1948 Map of Mohawk
1948 Mohawk1948 Print · USGSCopper mining and rail transport dominate the Keweenaw Peninsula in the late 1940s as industry follows the mineral-rich ridges. Genealogists and historians can trace the street grids of Mohawk and Fulton or locate industrial sites like the Gratiot Mine and the Hecla and Torch Lake RR.2 unique versions available - 1948 Map of Eagle Harbor
1948 Eagle Harbor1948 Print · USGSThe Keweenaw Peninsula's rugged mining and maritime culture is on full display in the late 1940s. Genealogists and historians can trace the foundations of Central and Copper Falls, or locate family sites near Pine Grove Cem and the Coast Guard Sta.2 unique versions available - 1948 Map of Bruneau Creek
1948 Bruneau Creek1948 Print · USGSKeweenaw's rugged northern interior and Lake Superior shoreline are captured here in the late 1940s. Researchers can trace the winding paths of Bruneau Creek and the Tobacco River or locate the summit of Mt Horace Greeley.2 unique versions available - 1948 Map of Delaware, 1955 Print
1948 Delaware1955 Print · USGSKeweenaw County’s rugged northern tip appears in the late 1940s, from the rocky harbor at Agate Point down to the settlement at Delaware. You can trace the complex geography of the Montreal River valley and find early mining-era sites like Mandan and Lac La Belle.8 unique versions available - 1948 Map of Lake Medora, 1964 Print
1948 Lake Medora1964 Print · USGSThe Keweenaw Peninsula's northern coast appears here in the late 1940s, balancing its mining history with emerging tourism. Researchers can trace the winding Brockway Mountain Drive and find landmarks like Ft Wilkins State Park and Mount Houghton.3 unique versions available - 1948 Map of Fort Wilkins, 1964 Print
1948 Fort Wilkins1964 Print · USGSThe tip of the Keweenaw Peninsula in the late 1940s reflects a landscape shaped by military history and the waning copper industry. Researchers can locate Old Fort Wilkins, the Copper Harbor Lighthouse, and a Copper Mine (Abandoned).3 unique versions available - 1948 Map of Manitou Island, 1965 Print
1948 Manitou Island1965 Print · USGSKeweenaw Peninsula's easternmost reaches appear here in the late 1940s, highlighting the isolated lighthouse outposts in Lake Superior. Maritime researchers can trace the vital navigation points at Manitou Island Lighthouse and Gull Rock Lighthouse.4 unique versions available - 1948 Map of Deer Lake, 1965 Print
1948 Deer Lake1965 Print · USGSKeweenaw's rugged shoreline and interior waterways are captured here in the late 1940s as a new coastal road was first being carved. Researchers can trace the early path of the road UNDER CONSTRUCTION near Black Rock Point or locate the site of the Betsy River School.3 unique versions available - 1948 Map of Point Isabelle, 1968 Print
1948 Point Isabelle1968 Print · USGSThe Keweenaw Peninsula coast is captured here just after the war, showing the vital maritime link between the Great Lakes and inland waters. Researchers can trace the navigation route through the Mendota Canal and locate the Mendota Light House.2 unique versions available
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