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1900s (20th Century) Maps of Porthmadog, Gwynedd

Explore 14 historic maps of Porthmadog 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 Porthmadog'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 Porthmadog's history through authentic maps from the 1900s. This is your window into the past.

Porthmadog, Gwynedd maps

(14)
  1. 1913 Map of Caernarvonshire XXXIV.NE, 1919 Print
    1913 Map of Caernarvonshire XXXIV.NE, 1919 Print
    1913 Caernarvonshire XXXIV.NE
    1919 Print · USGS
    Covers Porthmadog, including Dolbenmaen, Portreuddyn, and other nearby areas
  4. 1913 Map of Caernarvonshire XLII.NE, 1919 Print
    1913 Map of Caernarvonshire XLII.NE, 1919 Print
    1913 Caernarvonshire XLII.NE
    1919 Print · USGS
    Covers Porthmadog, including Harlech, Talsarnau, and other nearby areas
  7. 1913 Map of Caernarvonshire XLII.NW, 1920 Print
    1913 Map of Caernarvonshire XLII.NW, 1920 Print
    1913 Caernarvonshire XLII.NW
    1920 Print · USGS
    Covers Porthmadog, including Criccieth, Gwynedd, and other nearby areas
    2 unique versions available
  10. 1913 Map of Caernarvonshire XXXIV.SW, 1920 Print
    1913 Map of Caernarvonshire XXXIV.SW, 1920 Print
    1913 Caernarvonshire XXXIV.SW
    1920 Print · USGS
    Covers Porthmadog, including Criccieth, Dolbenmaen, and other nearby areas
  13. 1913 Map of Caernarvonshire XXXV.SW, 1920 Print
    1913 Map of Caernarvonshire XXXV.SW, 1920 Print
    1913 Caernarvonshire XXXV.SW
    1920 Print · USGS
    Covers Porthmadog, including Llanfrothen, Talsarnau, and other nearby areas
    3 unique versions available
  16. 1913 Map of Caernarvonshire XXXIV.SE, 1920 Print
    1913 Map of Caernarvonshire XXXIV.SE, 1920 Print
    1913 Caernarvonshire XXXIV.SE
    1920 Print · USGS
    Covers Porthmadog, including Pwllgoleulas, Pwllgolaulas, and other nearby areas
  19. 1938 Map of Caernarvonshire XXXIV.SE, 1948 Print
    1938 Map of Caernarvonshire XXXIV.SE, 1948 Print
    1938 Caernarvonshire XXXIV.SE
    1948 Print · USGS
    Covers Porthmadog, including Pwllgoleulas, Pwllgolaulas, and other nearby areas
  22. 1938 Map of Caernarvonshire XLII.NE, 1948 Print
    1938 Map of Caernarvonshire XLII.NE, 1948 Print
    1938 Caernarvonshire XLII.NE
    1948 Print · USGS
    Covers Porthmadog, including Harlech, Talsarnau, and other nearby areas
  25. 1938 Map of Caernarvonshire XXXIV.SW, 1948 Print
    1938 Map of Caernarvonshire XXXIV.SW, 1948 Print
    1938 Caernarvonshire XXXIV.SW
    1948 Print · USGS
    Covers Porthmadog, including Criccieth, Dolbenmaen, and other nearby areas
  28. 1949 Map of Caernarvonshire XLII.NE, 1953 Print
    1949 Map of Caernarvonshire XLII.NE, 1953 Print
    1949 Caernarvonshire XLII.NE
    1953 Print · USGS
    Covers Porthmadog, including Harlech, Talsarnau, and other nearby areas
  31. 1949 Map of Caernarvonshire XXXIV.NE, 1953 Print
    1949 Map of Caernarvonshire XXXIV.NE, 1953 Print
    1949 Caernarvonshire XXXIV.NE
    1953 Print · USGS
    Covers Porthmadog, including Dolbenmaen, Portreuddyn, and other nearby areas
  34. 1949 Map of Caernarvonshire XXXIV.SE, 1954 Print
    1949 Map of Caernarvonshire XXXIV.SE, 1954 Print
    1949 Caernarvonshire XXXIV.SE
    1954 Print · USGS
    Covers Porthmadog, including Pwllgoleulas, Pwllgolaulas, and other nearby areas
  37. 1949 Map of Caernarvonshire XXXV.SW, 1954 Print
    1949 Map of Caernarvonshire XXXV.SW, 1954 Print
    1949 Caernarvonshire XXXV.SW
    1954 Print · USGS
    Covers Porthmadog, including Llanfrothen, Talsarnau, and other nearby areas
  40. 1949 Map of Caernarvonshire XXXIV.SW, 1954 Print
    1949 Map of Caernarvonshire XXXIV.SW, 1954 Print
    1949 Caernarvonshire XXXIV.SW
    1954 Print · USGS
    Covers Porthmadog, including Criccieth, Dolbenmaen, and other nearby areas
End of results
Showing maps 1-14 of 14

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Frequently asked questions

  • What are the different types of historical maps available for Porthmadog?
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