Old Maps of San Bernardino, California for Metal Detecting
Plan your next treasure hunt with 46 historic maps of San Bernardino. Find old homesites, ghost towns, trails, and gathering spots that may be lost to time — perfect for identifying promising metal detecting locations.
- Locate forgotten sites: Uncover places like long-lost settlements, abandoned rail lines, or gathering spots.
- Plan better hunts: Use map overlays combined with LiDAR or satellite views to narrow in on historically rich areas.
- Made for detectorists: Thousands of hobbyists use these maps to discover relics, coins, and hidden history.
Use these historic maps to boost your research and find new opportunities beneath the surface of San Bernardino.
San Bernardino, CA maps
(46)- 1896 Map of San Bernardino
1896 San Bernardino1896 Print · USGSSan Bernardino and Colton emerge as vital rail junctions during the late nineteenth-century boom. Genealogists and historians can trace early citrus-belt settlements like Rosena, Mound City, and Bloomington alongside the historic Gage Canal. - 1898 Map of San Bernardino
1898 San Bernardino1898 Print · USGSThe San Bernardino valley was a critical railroad junction in the late nineteenth century, defined by rapid irrigation and mountain access. Researchers can trace the early footprints of Colton and Rialto, alongside local landmarks like Glen Helen Ranch and the industrial Quarry at Declezville. - 1899 Map of Redlands, 1958 Print
1899 Redlands1958 Print · USGSThe San Bernardino Valley flourished at the end of the century as an irrigation-fed agricultural power. Trace the early citrus economy through Redlands and Mentone, or locate the Asylum at Patton and the mountain retreat at Squirrel Inn. - 1901 Map of Southern California Sheet No. 1
1901 Southern California Sheet No. 11901 Print · USGSGreater Los Angeles at the dawn of the twentieth century is a landscape of growing citrus towns and a burgeoning rail network. Genealogists and historians can trace the early gridded streets of Hollywood and Pasadena or locate landmarks like Bear Lake and the Cahuilla Indian Reservation.6 unique versions available - 1901 Map of San Bernardino
1901 San Bernardino1901 Print · USGSThe San Bernardino valley thrived as a railway and agricultural crossroads in the late nineteenth century. Genealogists and historians can trace early citrus-belt settlements like Rialto and Colton, or locate landmarks such as Arrowhead Springs and Glen Helen Ranch.8 unique versions available - 1901 Map of Redlands
1901 Redlands1901 Print · USGSRedlands and the San Bernardino valley are seen here at the turn of the century as agriculture and rail networks began to reshape the landscape. Genealogists and historians can trace early irrigation ditches like the Zanja or locate vanished landmarks like the Asylum and Harlem Springs.9 unique versions available - 1904 Map of Southern California Sheet No. 1, 1905 Print
1904 Southern California Sheet No. 11905 Print · USGSSouthern California at the dawn of the twentieth century shows a landscape of citrus groves and coastal towns connected by rail. Genealogists and historians can trace early settlements like San Juan Capistrano, find remote sites like the Rose Mine, and study the original water systems of the Santa Ana River.2 unique versions available - 1936 Map of Devore
1936 Devore1936 Print · USGSSan Bernardino County at the edge of the mountains in the mid-1930s shows a landscape of early aviation and mountain transit. Researchers can find the Fontana Intermediate Landing Field, the Cajon Sch, and the Glenn Helen Base Infirmary. - 1936 Map of Arrowhead
1936 Arrowhead1936 Print · USGSSan Bernardino expanded toward the foothills during the mid-thirties as the rail network reached its peak. Genealogists and historians can trace the early footprints of Muscoy, locate the Del Rosa Ranger Sta, and follow the Pacific Electric lines through the valley. - 1938 Map of Colton
1938 Colton1938 Print · USGSThe rail and citrus hubs of San Bernardino County are in full bloom during the late 1930s. Researchers can trace the industrial infrastructure of Colton and Rialto, including the Cement Plant and the grounds of the National Orange Show. - 1941 Map of Devore
1941 Devore1941 Print · USGSThe Cajon Pass area in the early 1940s reveals a landscape defined by critical rail lines and alluvial washes. Researchers can trace the development of infrastructure around Devore through landmarks like the Cajon Sch, Fontana Airport, and the Glenn Helen Infirmary.2 unique versions available - 1941 Map of Arrowhead
1941 Arrowhead1941 Print · USGSSan Bernardino expanded toward the mountain front during the late thirties and early forties. Trace the complex rail networks of the Union Pacific and Pacific Electric through old neighborhoods like Ono, Muscoy, and Del Rosa.2 unique versions available - 1942 Map of San Bernardino
1942 San Bernardino1942 Print · USGSThe San Bernardino Valley flourished as a railroad and citrus hub during the early years of the war. Researchers can trace the extensive tracks of the Atchison Topeka and Santa Fe, the National Orange Show grounds, and local landmarks like the Loma Linda Sanatorium. - 1943 Map of Colton
1943 Colton1943 Print · USGSThe Inland Empire’s rail and citrus heritage is on full display during the early 1940s as industry expands around the San Bernardino line. Trace the historic convergence of the Southern Pacific and Union Pacific near Slover Mtn and the National Orange Show grounds.2 unique versions available - 1953 Map of San Bernardino
1953 San Bernardino1953 Print · USGSSouthern California underwent massive post-war growth as suburban sprawl reached the foothills of the San Bernardino Mountains. Genealogists and historians can trace the rail-and-road roots of the Inland Empire through the Union Pacific RR and Lake Arrowhead resorts.2 unique versions available - 1953 Map of Harrison Mtn., 1955 Print
1953 Harrison Mtn.1955 Print · USGSThe San Bernardino foothills and mountain resorts are captured here in the early fifties as valley communities began to expand toward the forest. Genealogists and local historians can trace the footprint of Patton State Hospital and mountain settlements like Skyforest and Fredalba.2 unique versions available - 1954 Map of Devore, 1955 Print
1954 Devore1955 Print · USGSCajon Pass served as a critical rail and transit corridor in the mid-1950s as San Bernardino’s northern valley expanded. Researchers can trace historic homesteads like Glenn Helen Ranch, early aviation at Miro-Fontana Airport, and the Cajon School.2 unique versions available - 1954 Map of Redlands, 1955 Print
1954 Redlands1955 Print · USGSRedlands and the surrounding citrus groves are captured here in the mid-fifties, just as the region's rail and water networks reached their peak complexity. Genealogists and local historians can trace the foundations of the community through Norton Air Force Base, the University of Redlands, and the San Gabriel Mission Asistencia.2 unique versions available - 1954 Map of San Bernardino North, 1955 Print
1954 San Bernardino North1955 Print · USGSPostwar growth meets the mountain foothills in the mid-1950s as San Bernardino expands toward the national forest. Researchers can trace historic schools like Polytechnic High Sch, the Pacific Electric rail lines, and resorts at Lake Gregory.2 unique versions available - 1954 Map of San Bernardino South, 1955 Print
1954 San Bernardino South1955 Print · USGSThe Inland Empire is shown at a pivotal moment of post-war development, where citrus groves meet expanding rail and military hubs. Genealogists and historians can locate legacy sites like Agua Mansa Cemetery, the Union Academy, and the early footprint of Norton Air Force Base.2 unique versions available - 1954 Map of San Bernardino, 1959 Print
1954 San Bernardino1959 Print · USGSSan Bernardino and the booming valley floor are shown in the mid-fifties as the citrus groves began giving way to suburban and industrial growth. Researchers can trace family roots through Waterman Gardens, find small regional hubs like Miro-Fontana Airport, or locate the historic Agua Mansa Cem.2 unique versions available - 1954 Map of Redlands, 1960 Print
1954 Redlands1960 Print · USGSThe Inland Empire is shown at a mid-century peak of citrus production and mountain development. Genealogists can locate family landmarks from Harlem Springs to Yucaipa, including the San Gabriel Mission Asistencia and University of Redlands.3 unique versions available - 1956 Map of San Bernardino
1956 San Bernardino1956 Print · USGSSouthern California's Inland Empire and High Desert come into focus in the mid-fifties as agriculture gives way to suburban and military growth. Trace early rail lines like the Pacific Electric or find remote landmarks like Camp Rock Mine and George AFB. - 1957 Map of San Bernardino
1957 San Bernardino1957 Print · USGSSouthern California's Inland Empire and High Desert met during the postwar expansion of the late fifties. Genealogists and historians can trace the growth of San Bernardino and Redlands alongside remote landmarks like Edwards AFB and the Camp Rock Mine. - 1958 Map of San Bernardino, 1975 Print
1958 San Bernardino1975 Print · USGSSouthern California’s Inland Empire and High Desert come into focus during the mid-century boom, showing the rise of suburbs and massive military installations. Researchers can trace the rail networks of the Union Pacific RR or locate landmarks like Norton AFB and Big Bear Lake.
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Frequently asked questions
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