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Old Maps of Hyampom, California for Academic Research

Study the evolution of Hyampom with 11 high-resolution historic maps. Whether you're teaching, researching, or modeling changes in land use, these maps provide essential visual documentation of urban, environmental, and geographic change.

  • Analyze long-term change: Track patterns in development, transportation, and natural features.
  • Ideal for environmental or urban studies: Support academic projects with primary historical map data.
  • Use in the classroom or lab: Educators and researchers rely on these maps to bring historical context to life.

These maps are a powerful tool for teaching, research, and visualizing how Hyampom has changed over the decades.

Hyampom, CA maps

(11)
  1. 1909 Map of Big Bar
    1909 Map of Big Bar
    1909 Big Bar
    1909 Print · USGS
    Trinity County at the turn of the century shows a land defined by deep river canyons and remote mountain settlements. Genealogists and local historians can trace early footprints at Hyampom and Hayfork, or locate the high ridges of Barker Mtn and Thompson Peak.
    2 unique versions available
  4. 1915 Map of Big Bar and Vicinity
    1915 Map of Big Bar and Vicinity
    1915 Big Bar and Vicinity
    1915 Print · USGS
    The Trinity River wilderness in the early twentieth century was a landscape of isolated mining outposts and river settlements. Genealogists and historians can trace the early footprints of Junction City, Helena, and Hyampom alongside remote landmarks like Keystone Cabin.
    5 unique versions available
  7. 1951 Map of Hyampom, 1953 Print
    1951 Map of Hyampom, 1953 Print
    1951 Hyampom
    1953 Print · USGS
    The Trinity County mountains in the early fifties show a landscape of remote ranching and forest management. Researchers can locate family holdings like Grel Ranch, remote outposts at Camp Trinity, and the vital Landing Field at Hyampom.
    4 unique versions available
  10. 1958 Map of Redding
    1958 Map of Redding
    1958 Redding
    1958 Print · USGS
    Northern California's valley and mountain landscapes are captured in the late fifties, showing the region as new reservoirs reshaped the river systems. Genealogists and historians can trace rail-side towns like Cottonwood, the military presence at Red Bluff Air Force Station, and mountain outposts like Weaverville.
    5 unique versions available
  13. 1982 Map of Hyampom
    1982 Map of Hyampom
    1982 Hyampom
    1982 Print · USGS
    Hyampom and the surrounding Trinity National Forest are shown here in the early eighties at the confluence of the South Fork Trinity River and Hayfork Creek. Researchers can locate family outposts like Marcels Ranch and French Ranch or trace trails to Butter Creek Caves.
  16. 1982 Map of Hayfork, 1983 Print
    1982 Map of Hayfork, 1983 Print
    1982 Hayfork
    1983 Print · USGS
    Trinity and Humboldt counties appear here in the early eighties as a landscape of timber and mining. Researchers can trace remote river settlements like Hyampom and Burnt Ranch or locate old operations such as the Yellowstone Mine and Index Mine.
  19. 1998 Map of Hyampom, 2003 Print
    1998 Map of Hyampom, 2003 Print
    1998 Hyampom
    2003 Print · USGS
    Hyampom and the Trinity River valley are captured here in the late 1990s as the area maintained its remote ranching and forest-service character. Researchers can find family-named landmarks like French Ranch, the Airstrip, and several springs and flats including Wintoon Flat.
  22. 2012 Map of Hyampom, 2012 Print
    2012 Map of Hyampom, 2012 Print
    2012 Hyampom
    2012 Print · USGS
    Covers Hyampom, including Trinity County, United States, and other nearby areas
  25. 2015 Map of Hyampom, 2015 Print
    2015 Map of Hyampom, 2015 Print
    2015 Hyampom
    2015 Print · USGS
    Covers Hyampom, including Trinity County, United States, and other nearby areas
  28. 2018 Map of Hyampom, 2018 Print
    2018 Map of Hyampom, 2018 Print
    2018 Hyampom
    2018 Print · USGS
    Covers Hyampom, including Trinity County, United States, and other nearby areas
  31. 2022 Map of Hyampom, 2022 Print
    2022 Map of Hyampom, 2022 Print
    2022 Hyampom
    2022 Print · USGS
    Trinity County's remote river canyons are captured here in the early twenty-first century as they converge at Hyampom Valley. Researchers can trace old family sites and mountain landmarks from the Hyampom Cem to Waldorff Flat and Limedyke Mtn.
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Frequently asked questions

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