Helm California Fresno Slough Fish Slough USGS Topo Map 1947
Helm California Fresno Slough Fish Slough USGS Topo Map 1947 - Image 2
Helm California Fresno Slough Fish Slough USGS Topo Map 1947 - Image 3
Helm California Fresno Slough Fish Slough USGS Topo Map 1947 - Image 4
Helm California Fresno Slough Fish Slough USGS Topo Map 1947 - Image 5
Helm California Fresno Slough Fish Slough USGS Topo Map 1947 - Image 6

Helm California Fresno Slough Fish Slough USGS Topo Map 1947

$32

Printed in its year of first publication, 1947, this USGS 7.5-minute topographic sheet is in good condition, with a midsheet horizontal foldline where it was folded in half and moderate handling. Based on a 1923 field survey with 1946 revisions, it takes in the Helm area of the San Joaquin Valley about 21 miles southwest of Fresno in Fresno County, with Fresno Slough and Fish Slough running through the quad. The sheet records the flat valley floor before the modern road system and much of the current agricultural footprint, showing historic levees, canals, place names, and the ranches, schools, and rail lines known at the time. The reverse carries printed reference material about the mapping program and how to read the map.

In stock

SKU: 303 Categories: ,
MAP DETAILS
TITLEHelm
STATECalifornia
LOCATION21 miles southwest of Fresno
SERIES7.5-minute
SURVEYED1923 Field Survey
EDITION1947
REVISION1946
PRINTED1947
SCALE1:24000
CONTOUR INTERVAL5 feet
SHEET DIMENSIONS21 x 26 1/2 inches
MAP DIMENSIONS18 1/4 x 22 3/4 inches
COVERAGE AREA7 x 9 miles
SHEET CONDITION
For maps of this vintage, effort is made to note all visible flaws, no matter how minor.
OVERALL CONDITIONGood
SHEET NOTESmoderately handled, midsheet horizontal foldline (in half)
MAP AREAminor wear, no markings, no blemishes
COLLARSvery minor wear or tears, no markings, no blemishes, pinholes in collar
MAP COVERAGE
Quadrangle extent overlaid on current basemap.
BACKSIDE LEGEND
A map summary is printed on the back side of the Helm sheet similar to the one shown in the picture. It outlines the history, purpose, and status of the USGS mapping program at the time of the printing in 1947. It also provides instructions on how to read contour lines and a description of how they are used to depict the terrain. At the bottom of the page is a legend showing all of the symbols used to represent the cultural, relief, and water features found on the map.

This vintage sheet is a 1947 edition of the Helm California USGS topographic map. It is an original 79-year-old United States Geological Survey print in good condition.

HOW THIS MAP CAN BE USED
In addition to making a fascinating conversation piece, this sheet would look great in a frame or on display, make a unique and prized gift for anyone interested in this area, be perfect as a reference for genealogy studies or general historical research, or fill that missing piece in your collection.

FEATURES SHOWN ON THE MAP
The Helm 7.5-minute map shows cities and towns, roads, paths, railroads, rivers, creeks, elevation contour lines, public land survey lines, county, state, and other administrative boundaries as they existed at the time of the survey in 1923. All known structures (houses, businesses, churches, schools, barns, cabins, etc) are also shown.

A VALUABLE HISTORICAL RECORD
This map is from the 7.5-minute series, the most detailed series that is widely available from the USGS. The 1947 Helm map is a valuable historical record for the area. It contains some placenames and features that have been dropped from more recent maps.

PLACENAMES
The following places are found within the boundary of this quadrangle. They may or may not be shown or labeled, depending on the map series and vintage.
* Cities and Towns-> Helm
* Counties Covered-> Fresno

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