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Old Maps of Brownsville, Texas for Metal Detecting

Plan your next treasure hunt with 89 historic maps of Brownsville. 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 Brownsville.

Brownsville, TX maps

(89)
  1. 1929 Map of Rio Hondo
    1929 Map of Rio Hondo
    1929 Rio Hondo
    1929 Print · USGS
    Coastal South Texas is captured here in the late twenties, showing the intricate water systems and rail lines of the Lower Rio Grande Valley. Genealogists and historians can trace local landmarks like Rio Hondo, the Mexican Christian Ch, and the San Jose Sch.
  4. 1929 Map of La Coma
    1929 Map of La Coma
    1929 La Coma
    1929 Print · USGS
    The Texas coast near Laguna Madre comes into focus in the late twenties, showing the intricate resaca systems of the Rio Grande delta. Trace early ranching and rail history through La Coma Ranch, the settlement of Abney, and the San Benito and Rio Grande Valley line.
  7. 1929 Map of Palmito Hill
    1929 Map of Palmito Hill
    1929 Palmito Hill
    1929 Print · USGS
    The southern tip of Texas meets the gulf in the late 1920s, where the winding river forms the border with Tamaulipas. Researchers can trace the early road network and remote outposts like Palmito Ranch, Los Sauces Ranch, and the Boca Chica Highway.
  10. 1929 Map of Laguna Vista
    1929 Map of Laguna Vista
    1929 Laguna Vista
    1929 Print · USGS
    The Cameron County coastline in the late twenties is defined by a maze of lagoons and ridges as the region began to modernize. Trace early transit routes like Vara Crossing and the Rio Grande Valley RR near Laguna Vista.
  13. 1929 Map of La Paloma
    1929 Map of La Paloma
    1929 La Paloma
    1929 Print · USGS
    Coastal South Texas is depicted here in the late twenties as the agricultural valley relied on the irrigation of the old river resacas. Genealogists and historians can trace the early rail stops and schools like Rangerville Sch, Carricitos Siding, and the riverside village of La Paloma.
  16. 1930 Map of Los Fresnos
    1930 Map of Los Fresnos
    1930 Los Fresnos
    1930 Print · USGS
    Cameron County's agricultural and rail landscape is captured here in the early thirties. Genealogists can trace early homesteads near Los Fresnos or locate landmarks like the Palo Alto Battlefield Monument and White House Sch.
  19. 1930 Map of West Brownsville
    1930 Map of West Brownsville
    1930 West Brownsville
    1930 Print · USGS
    The Texas-Mexico border landscape is captured here in the early twentieth century as the river winds through Cameron County. Genealogists and historians can trace family-named lands like Carmen Ranch and landmarks such as Barreda Sch and the International Bridge.
  22. 1930 Map of Barreda
    1930 Map of Barreda
    1930 Barreda
    1930 Print · USGS
    Coastal South Texas is seen here during the irrigation boom of the early thirties, showing the intricate oxbows and ranch lands. Researchers can trace the St Louis Brownsville and Mexico Railway past Barreda and the Old Military Road.
  25. 1930 Map of East Brownsville
    1930 Map of East Brownsville
    1930 East Brownsville
    1930 Print · USGS
    Brownsville and the Rio Grande borderlands are captured here just as early flight and rail were transforming the South Texas landscape. Researchers can locate Fort Brown, trace the winding Resaca de la Palma, and find old rural schools like Jardin Sch.
  28. 1932 Map of Rio Hondo
    1932 Map of Rio Hondo
    1932 Rio Hondo
    1932 Print · USGS
    Coastal Texas ranching and rail commerce meet in the early 1930s as irrigation begins to reshape the landscape around Rio Hondo. Genealogists and historians can trace family-named landmarks and rural hubs like Las Yescas Ranch, Lozano, and the Mexican Christian Ch.
    3 unique versions available
  31. 1934 Map of La Coma
    1934 Map of La Coma
    1934 La Coma
    1934 Print · USGS
    Coastal Cameron County comes to life in the early thirties, showing the intricate resacas and shoreline settlements before the modern era. Genealogists and historians can trace the tracks of the Missouri Pacific RR past Abney and locate the historic La Coma Ranch.
    3 unique versions available
  34. 1936 Map of Los Fresnos
    1936 Map of Los Fresnos
    1936 Los Fresnos
    1936 Print · USGS
    The Lower Rio Grande Valley landscape comes into focus during the 1930s, highlighting a network of irrigation ditches and historical battle sites. Researchers can trace the winding Resaca de los Cuates or locate vanished landmarks like the Palo Alto Battlefield Monument and White House Sch.
    3 unique versions available
  37. 1936 Map of West Brownsville
    1936 Map of West Brownsville
    1936 West Brownsville
    1936 Print · USGS
    The Texas-Mexico border landscape comes alive in the mid-1930s, showing the early urban development of the Lower Rio Grande Valley. Researchers can trace the region's ranching heritage and vital water infrastructure through labels like Barreda Sch, Villa Nueva, and the sprawling Resaca de la Palma.
    2 unique versions available
  40. 1936 Map of Palmito Hill
    1936 Map of Palmito Hill
    1936 Palmito Hill
    1936 Print · USGS
    Coastal Cameron County comes alive in the mid-1930s, showing the ridges and riverbanks where the Civil War drew to a close. Genealogists and historians can trace family raches like Old Palmito Ranch and Los Sauces Ranch near the Palmito Hill Battlefield.
    2 unique versions available
  43. 1936 Map of Barreda
    1936 Map of Barreda
    1936 Barreda
    1936 Print · USGS
    The Lower Rio Grande Valley's unique oxbow landscape is captured here in the mid-1930s, showing a network of resacas and early irrigation works. Researchers can trace family-named lands like Soldado Ranch and Naranjas Ranch or locate the old Airways Beacon near Olmito.
    2 unique versions available
  46. 1936 Map of Laguna Vista
    1936 Map of Laguna Vista
    1936 Laguna Vista
    1936 Print · USGS
    The Texas Gulf Coast near the Rio Grande delta was a landscape of tidal flats and transition zones in the 1930s. Genealogists and historians can trace the Port Isabel and Rio Grande Valley Railroad or locate local landmarks like Posta de Roque and Bird Island.
    3 unique versions available
  49. 1936 Map of East Brownsville
    1936 Map of East Brownsville
    1936 East Brownsville
    1936 Print · USGS
    Brownsville and the lower Rio Grande valley are seen here in the mid-1930s, highlighting a landscape of oxbow resacas and international border crossings. Trace the historical grounds of De La Palma Battlefield, the early Brownsville Airport, and the grounds of Fort Brown.
    3 unique versions available
  52. 1936 Map of La Paloma
    1936 Map of La Paloma
    1936 La Paloma
    1936 Print · USGS
    The Lower Rio Grande Valley comes into focus during the mid-1930s as irrigation and rail lines transformed the borderlands. Genealogists and researchers can trace family landmarks and early school sites like Highland Sch, the Missouri Pacific rail stops, and the river benches at Capote Banco No 13.
    2 unique versions available
  55. 1936 Map of Southmost
    1936 Map of Southmost
    1936 Southmost
    1936 Print · USGS
    The tip of South Texas meets the international boundary in the mid-1930s, showing a river-driven landscape of large agricultural holdings and early railroad spurs. Researchers can trace the heritage of the Rabb Plantation, locate the Palm Grove Sch, and see the original layouts of Southmost and Nogales Ranch.
    3 unique versions available
  58. 1945 Map of Olmito
    1945 Map of Olmito
    1945 Olmito
    1945 Print · USGS
    Cameron County in the mid-forties shows a landscape shaped by the winding resacas of the Rio Grande Valley. Genealogists and historians can trace the development of the Missouri Pacific Line and local landmarks like Barreda State Park and Soldado Ranch.
  61. 1953 Map of Brownsville
    1953 Map of Brownsville
    1953 Brownsville
    1953 Print · USGS
    South Texas ranchlands and the Lower Rio Grande Valley are captured here in the early fifties as the region's irrigation and shipping networks expanded. Genealogists and historians can trace family landholdings like Tecolote Ranch or follow the route of the St Louis Brownsville and Mexico rail line through Sebastian and Yturria.
  64. 1955 Map of Palmito Hill, 1956 Print
    1955 Map of Palmito Hill, 1956 Print
    1955 Palmito Hill
    1956 Print · USGS
    The Texas coast near the mouth of the Rio Grande is shown here in the mid-fifties, centered on the site of the last battle of the Civil War. Researchers can trace the legacy of old cattle operations at Old Palmito Ranch or locate the Battle of Palmito Hill historical monument.
    3 unique versions available
  67. 1955 Map of Southmost, 1956 Print
    1955 Map of Southmost, 1956 Print
    1955 Southmost
    1956 Print · USGS
    The Rio Grande meanders through southernmost Texas in the mid-1950s, defining a landscape of agricultural plantations and international bancos. Genealogists and historians can trace family lands at Brulay Plantation, Southmost Ranch, and Southmost Cem.
    2 unique versions available
  70. 1955 Map of Los Fresnos, 1957 Print
    1955 Map of Los Fresnos, 1957 Print
    1955 Los Fresnos
    1957 Print · USGS
    Coastal Cameron County in the mid-1950s shows a landscape transitioning between its martial history and modern agricultural expansion. Trace the Palo Alto Battlefield and find local landmarks like Wardner Ranch, Charco Honda, and Los Fresnos Sch.
    3 unique versions available
  73. 1955 Map of Laguna Vista, 1957 Print
    1955 Map of Laguna Vista, 1957 Print
    1955 Laguna Vista
    1957 Print · USGS
    Coastal Cameron County in the mid-fifties is defined by the winding lomas and tidal waters of the Laguna Madre. Trace local history through the early footprints of Laguna Vista and Bayside, or locate forgotten paths like La Aura Crossing.
    4 unique versions available
Showing maps 1-25 of 89

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Frequently asked questions

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