Old Maps of Idria, California for Genealogy
Trace your family roots with these historic maps of Idria. These high-res maps reveal old neighborhoods, homesites, landmarks, and streets — helping you uncover where your ancestors lived and how the area evolved over time.
- Explore historic neighborhoods: Identify where your relatives may have lived in the 1800s or 1900s.
- Compare maps over time: Trace the changes in streets, buildings, and landmarks for multi-generational research.
- Perfect for genealogy & ancestry research: Used by family historians and researchers to map out lineage and migration.
These maps are an incredible resource for exploring your personal connection to Idria's past.
Idria, CA maps
- 1915 Map of Priest Valley
1915 Priest Valley1915 Print · USGSCoastal range life in the early 1900s centered on remote mines and valley ranching hubs. Researchers can trace rural school districts like Columbus School and explore early mining operations such as the Monterey Coalmine or the New Idria Idria P O.5 unique versions available - 1943 Map of New Idria
1943 New Idria1943 Print · USGSSan Benito and Fresno counties were centers of intensive mercury mining in the early 1940s. Genealogists and industrial historians can trace early claims like the Spanish Mine and Florence Mack Mine or locate the remote New Idria Idria PO.2 unique versions available - 1948 Map of Santa Cruz
1948 Santa Cruz1948 Print · USGSThe Central Coast and San Joaquin Valley meet in this mid-century look at the region's agricultural and military geography. Genealogists and historians can trace the paths of El Camino Real, locate family farms near Hollister, or study the footprint of the Fort Ord Military Reservation.2 unique versions available - 1955 Map of Santa Cruz
1955 Santa Cruz1955 Print · USGSCoastal Monterey Bay and the fertile Salinas Valley are captured here during the post-war expansion of the mid-fifties. Researchers can trace the era's rail-and-road network via the Southern Pacific lines and find landmarks like Fort Ord or the Lonoak School. - 1956 Map of New Idria
1956 New Idria1956 Print · USGSThe Diablo Range's remote mining country is captured here in the mid-fifties, centered on the settlement of New Idria. Genealogists and historians can trace the industrial footprint of the San Carlos Mine, Alpine Mine, and the Jade Mill.3 unique versions available - 1957 Map of Santa Cruz
1957 Santa Cruz1957 Print · USGSCentral California comes into sharp focus during the late fifties, from the fog-swept Monterey Bay to the sun-drenched San Joaquin Valley. Genealogists and historians can trace the mid-century footprints of Fort Ord Military Reservation, the Southern Pacific line, and the historic streets of San Juan Bautista. - 1958 Map of Santa Cruz
1958 Santa Cruz1958 Print · USGSCoastal California and the central valleys are shown during the mid-fifties, capturing a landscape of massive military reserves and vital rail arteries. Genealogists and historians can trace the Southern Pacific line through Salinas or explore the early footprints of the Fort Ord Military Reservation and San Juan Bautista.2 unique versions available - 1965 Map of Santa Cruz, 1968 Print
1965 Santa Cruz1968 Print · USGSThe Central Coast and San Joaquin Valley meet here during the mid-sixties, capturing the growth of agricultural and coastal hubs. Trace the historic Southern Pacific RR lines and locate sites like the Presidio of Monterey or Pinnacles National Monument. - 1969 Map of Idria, 1973 Print
1969 Idria1973 Print · USGSSan Benito County’s quicksilver mining district is shown in high detail during the late sixties. Researchers can trace the industrial layout of the New Idria Mine, the remote outpost of Idria, and numerous family-named claims like the Sampson Mine.2 unique versions available - 1974 Map of Monterey, 1977 Print
1974 Monterey1977 Print · USGSThe Central Coast and San Joaquin Valley meet in this mid-seventies survey of the Monterey region. Genealogists and historians can locate Spanish-era sites like the San Antonio de Padua Mission, early industrial markers such as the New Idria Mine, and coastal landmarks like the Point Sur Lighthouse. - 1987 Map of Coalinga
1987 Coalinga1987 Print · USGSCentral California's rugged interior and industrial valleys come into focus in the late eighties. Researchers can trace the massive Coalinga Oil Field, follow the Southern Pacific rail lines, and locate remote outposts like Idria and Lonoak. - 2012 Map of Idria, 2012 Print
2012 Idria2012 Print · USGSCovers Idria, including San Benito County, United States, and other nearby areas - 2015 Map of Idria, 2015 Print
2015 Idria2015 Print · USGSCovers Idria, including San Benito County, United States, and other nearby areas - 2018 Map of Idria, 2018 Print
2018 Idria2018 Print · USGSCovers Idria, including San Benito County, United States, and other nearby areas - 2022 Map of Idria, 2022 Print
2022 Idria2022 Print · USGSThe Idria high country in the Diablo Range is shown in this modern survey of San Benito County. Researchers can trace the layout of the Idria and Vallecitos settlements or locate landmarks like Sampson Peak and Elkhorn Spring.
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