1900s (20th Century) Maps of Twin Rocks, Blacklick Township
Explore 9 historic maps of Twin Rocks from the 1900s (20th Century). These maps offer a rare glimpse into what life looked like during the 1900s — 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 Twin Rocks's landscape evolved across the 1900s, 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 1900s, 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 Twin Rocks's history through authentic maps from the 1900s. This is your window into the past.
Twin Rocks, Blacklick Township maps
(9)- 1904 Map of Johnstown, 1954 Print1904 Johnstown1954 Print · USGSCovers Twin Rocks, including Johnstown, Franklin, and other nearby areas2 unique versions available
- 1907 Map of Johnstown1907 Johnstown1907 Print · USGSCovers Twin Rocks, including Johnstown, Franklin, and other nearby areas6 unique versions available
- 1953 Map of Pittsburgh1953 Pittsburgh1953 Print · USGSCovers Twin Rocks, including Pittsburgh, Penn Hills, and other nearby areas
- 1954 Map of Pittsburgh1954 Pittsburgh1954 Print · USGSCovers Twin Rocks, including Pittsburgh, Penn Hills, and other nearby areas2 unique versions available
- 1958 Map of Pittsburgh1958 Pittsburgh1958 Print · USGSCovers Twin Rocks, including Pittsburgh, Penn Hills, and other nearby areas5 unique versions available
- 1959 Map of Pittsburgh1959 Pittsburgh1959 Print · USGSCovers Twin Rocks, including Pittsburgh, Penn Hills, and other nearby areas
- 1964 Map of Pittsburgh1964 Pittsburgh1964 Print · USGSCovers Twin Rocks, including Pittsburgh, Penn Hills, and other nearby areas
- 1964 Map of Nanty Glo, 1966 Print1964 Nanty Glo1966 Print · USGSCovers Twin Rocks, including Nanty Glo, Summerhill, and other nearby areas4 unique versions available
- 1981 Map of Johnstown, 1983 Print1981 Johnstown1983 Print · USGSCovers Twin Rocks, including Altoona, Johnstown, and other nearby areas
End of results
Showing maps 1-9 of 9
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Frequently asked questions
- What are the different types of historical maps available for Twin Rocks?
- What is the oldest map of Twin Rocks?
- Where can I purchase historical maps of Twin Rocks for my home or office?
- Where can I download high-res historical maps of Twin Rocks?
- Are there historical topographic maps available for Twin Rocks?
- Is there historical aerial imagery available for Twin Rocks?
- Where are historical maps of Twin Rocks sourced from?








