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ProQuest Sanborn Maps Geo Edition: Search Maps

ProQuest Sanborn Maps Geo Edition (1867-1970) provides digital access to thousands of large-scale maps of American towns and cities, searchable by address and GPS coordinates.

Search Tip

If executing another address or latitude/longitude search is of interest while working in the Geo-Enabled Map Viewer, users can simply conduct the search at the top of the viewer and press search. The type of search offered depends on the previous search type conducted.

Search Maps

Search ProQuest Sanborn Maps Geo Edition  by clicking either the Search tab at the top of the page or clicking the "Search by Address or Latitude/Longitude" link on the Home tab.  Both will redirect you to the following page: 

1. Click the "View a list of available locations" link to see all locations included in your library's subscription.

2. Enter an address (if known) and accompanying city* and state*, then click the "Search" button.  The 'address' field may be used to enter an intersection or landmark in lieu of a street number and name.

3. Enter the numbers for Latitude* and Longitude* in to the assigned fields.  Degrees is the standard format for these fields.

4.  Unsure of what to enter? Check out the Search Tips.

*Required fields

Address Searching

To search for a known address, landmark, or intersection:

a.      Enter a street address located in one of the available cities: (e.g. 400 North Rodeo Drive, Los Angeles, CA)

b.      Results will appear allowing for selection of an individual map sheet or a set of map sheets. Using the check boxes, mark the maps for viewing and click the “View Maps” button.”

c.      The map viewer will load a Google Street View map indicating the specified location in the center of the page as the base layer map and the maps selected in the previous screen as overlay maps. Here the user may zoom in/out or drag to reposition the Google map.

d.      To the right the Map Overlay options allow the user to:

 

i. Change the Base Layer View: Google Street View, Google Satellite, Google Hybrid

ii. Select Historical Map(s) to be overlayed:

1. The map(s) of choice will appear as white squares oriented to fit the current Google map view.

2.  Use map viewer Zoom for a closer view of historical map overlay in context.

                                                        iii.     Map-specific tools for Overlay maps:

                                 1.    Click the Zoom Map icon: clicking on the Zoom Map icon will take the user to an enlarged view of the Sanborn plate where several map manipulation tools are available (zoom, rotation, cropping, etc.

                                 2.    Add each historic Sanborn layer to MyNotebook: if a user wants to save a particular historic Sanborn map sheet for later analysis or review the MyNotebook feature allows them to save the map to their session-based notebook. The map can be retrieved later by clicking on the MyNotebook tab on the product Navigation bar. 

                                 3.   View the Atlas for each historic Sanborn layer: clicking on the atlas icon takes the user to the most basic form of viewing the historic Sanborn maps. It allows users to view the entire contents of a specific atlas for any given geographic location. When clicked in the Geo-Enabled Map Viewer under a specific map sheet the user is taken to the atlas in which that specific map sheet appears.    

                                 4.   View the Sanborn Legend (map key): By clicking on the Map Key icon a user can access the "black and white" Sanborn Legend which was developed specifically for use with black and white copies of Sanborn maps. The black and white markings on the maps indicate building material and elements, purpose, and safety features. Please note that the earlier versions of Sanborn maps relied solely on color to list building material, rather than abbreviations and markings. The Sanborn Legend, or "Map Key," provides a legend to the coding and is accessible from any map record. 

 

The Address Search results page will provide a chronological list of all relevant matches.  The list may be reorganized by clicking on the column headers (Date, Atlas Name, Plate, and County).  Use the check boxes to select which maps you would like to see as layers, then click the "View Maps" button.

Latitude / Longitude Searching

To search for Latitude and Longitude* coordinates (in degrees):

a.     Enter coordinates (i.e., Lat.: 38.90531943278526   Long.: 77.037699222565)* into both fields and click the "Search" button. 

b.      Results will appear allowing for selection of an individual map sheet or a set of map sheets.  Using the check boxes, mark the maps for viewing and click the “View Maps” button.”

c.   Follow directions and instructions regarding viewing, overlay tools, etc. from Address Searching above.

 

*Note that because the cities included in the database are in the U.S., the system assumes that any Longitudinal coordinate will be a negative coordinate (i.e., -77.037699222565), thus the negative symbol "-" need not be entered into the search field.

 

The Latitude/Longitude Search results page will provide a chronological list of all relevant matches.  The list may be reorganized by clicking on the column headers (Date, Atlas Name, Plate, and County).  Use the check boxes to select which maps you would like to see as layers, then click the "View Maps" button.