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1947 Map of Mariposa

Name: 1947 Topographic Map of Mariposa
Creator: U.S. Geological Survey
Published: 1948
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1948

About this map

Mariposa serves as the focal point of this late-1940s survey, illustrating a community defined by its mining heritage and its role as a gateway along the Yosemite All-Year Highway. The map captures the transition from active extraction to a more settled regional hub, as evidenced by the prominence of the Mariposa Mine and Granite King Mine alongside the established County Fair Grounds.

A network of creeks, including Mariposa Creek and Agua Fria Creek, carves through the landscape, while peripheral settlements like Mormon Bar, Bootjack, and John Allen Flat indicate a dispersed pattern of residency linked to the local geography. Significant local landmarks such as the Sebastopol Sch and the high point of Lookout Mtn provide essential context for genealogists tracing family locations across the Mariposa County hills during this post-war era.