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Old Maps of Boulder Park, California for Hiking & Exploration

Hike through history with 12 historic maps of Boulder Park. Explore old trails, ghost towns, and forgotten backroads — perfect for outdoor adventurers and local explorers.

  • Rediscover forgotten places: Map out old mining camps, roads, and footpaths that no longer exist on modern maps.
  • Layer with modern tools: Combine with LiDAR or satellite views to plan hikes through historical terrain.
  • Made for exploration: Popular among hikers, overlanders, and local history lovers.

Use these maps to find adventure and explore the hidden past of Boulder Park.

Boulder Park, CA maps

(12)
  1. 1931 Map of Carrizo, 1938 Print
    1931 Map of Carrizo, 1938 Print
    1931 Carrizo
    1938 Print · USGS
    Borderland life in the 1930s is defined by remote ranching outposts and vital desert springs along the international line. Trace old family sites and water sources like Campo P.O., Agua Caliente Hot Springs, and Laguna Ranch.
  4. 1939 Map of Jacumba, 1956 Print
    1939 Map of Jacumba, 1956 Print
    1939 Jacumba
    1956 Print · USGS
    The high-desert borderlands of San Diego and Imperial counties are documented here just before the 1940s. Researchers can trace the engineering of the San Diego and Arizona Eastern railway and locate remote sites like Smugglers Cave and the Asbestos Mine.
    2 unique versions available
  7. 1942 Map of Jacumba, 1944 Print
    1942 Map of Jacumba, 1944 Print
    1942 Jacumba
    1944 Print · USGS
    The high desert borderlands come alive in the 1940s as the railroad traverses the mountains into Imperial County. Researchers can trace the path of the San Diego and Arizona Eastern through Jacumba Hot Springs to remote sidings and desert claims like Mica Gem Mine.
  10. 1950 Map of San Diego, 1954 Print
    1950 Map of San Diego, 1954 Print
    1950 San Diego
    1954 Print · USGS
    Coastal San Diego and the Baja California border region come alive in this mid-century survey. Trace the early layout of National City and Chula Vista, or locate historic landmarks like the San Diego and Arizona Eastern RR and Fort Rosecrans.
  13. 1954 Map of San Diego
    1954 Map of San Diego
    1954 San Diego
    1954 Print · USGS
    San Diego and the northern reaches of Baja California are captured here during a decade of rapid post-war growth and military expansion. Researchers can trace the mid-century shoreline of Mission Beach, find established tribal lands like Capitan Grande Indian Reservation, and follow the border crossing into Tijuana.
  16. 1955 Map of San Diego
    1955 Map of San Diego
    1955 San Diego
    1955 Print · USGS
    Southern California underwent massive growth in the post-war years, as suburban development pushed into the canyons and foothills. Researchers can trace the mid-century infrastructure of Lindbergh Field, the Otay River, and numerous sites like Lemon Grove.
  19. 1958 Map of San Diego, 1961 Print
    1958 Map of San Diego, 1961 Print
    1958 San Diego
    1961 Print · USGS
    San Diego and its inland mountain ranges are captured here in the late fifties as coastal suburbs began to climb the mesas. Researchers can trace the mid-century footprint of Miramar Naval Air Station, the winding San Diego & Arizona Eastern Ry, and local landmarks like Cabrillo Nat Mon.
    4 unique versions available
  22. 1959 Map of Jacumba, 1961 Print
    1959 Map of Jacumba, 1961 Print
    1959 Jacumba
    1961 Print · USGS
    The High Desert and international borderlands are captured here in the late fifties. Trace the rail line through Carrizo Gorge or locate old mining sites like the Mica Gem Mine and Jade Mine.
    2 unique versions available
  25. 1959 Map of In-ko-pah Gorge, 1961 Print
    1959 Map of In-ko-pah Gorge, 1961 Print
    1959 In-ko-pah Gorge
    1961 Print · USGS
    The high desert borderlands come alive in this late-fifties survey of the steep transition from the Jacumba Mountains to the desert floor. Researchers can trace the path of old transit routes through In-Ko-Pah Gorge, finding the Stage Station Historical Marker and remote workings like the Easy Pickins Mine.
    3 unique versions available
  28. 1979 Map of El Cajon
    1979 Map of El Cajon
    1979 El Cajon
    1979 Print · USGS
    Southern San Diego County and its mountain-to-desert transition are captured here in the late seventies. Researchers can trace the winding San Diego & Arizona Eastern RR, locate rural settlements like Jacumba, and explore the sprawling Cleveland National Forest.
    2 unique versions available
  31. 1997 Map of In-ko-pah Gorge, 2003 Print
    1997 Map of In-ko-pah Gorge, 2003 Print
    1997 In-ko-pah Gorge
    2003 Print · USGS
    The Jacumba Mountains and the international border define this high-desert territory in the late twentieth century. Researchers can locate remote mining claims like the Little Randsburg Mine and historical transit sites including the Stage Station Historical Marker.
  34. 2021 Map of In-Ko-Pah Gorge, 2021 Print
    2021 Map of In-Ko-Pah Gorge, 2021 Print
    2021 In-Ko-Pah Gorge
    2021 Print · USGS
    The high desert of Imperial County at the turn of the 21st century reveals a landscape shaped by steep gorges and historic travel routes. Trace the ascent through In-Ko-Pah Gorge to find Mountain Spring and the high peaks of the Jacumba Mountains.
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Showing maps 1-12 of 12

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