Digital Archive and Mapping

The WRI's Geospatial efforts have evolved over the last few years to include a variety of projects including those that support Geographical Information System (GIS) learning opportunities for student Interns. This has allowed the WRI to increase our digital mapping capabilities while also offering students applied learning opportunities in Geospatial technologies.

We offer visitors the ability to search our archival documents, historical aerial photos and our USGS Topo Maps along with a range of other digital archival resources.

Note: It is important to make sure your Pop-Blocker is turned off for these applications to work.
The Map service may take a few moments to allow the images to load.
Each page also contains a HELP file that describes the way to navigate around the map.

 

Rowe Imagery Collection

This collection contains more than 4000 Historical Images from the 1930’s-1970’s.
This map service allows the visitor to choose an area of the map where they would like to see available imagery in the Collection. Most of the imagery is associated with the Santa Ana Watershed.

The WRI Archival Imagery Search Engine can be found here.

 

Upper Santa Ana River Historical Imagery -1967

This map services offers the visitor an overlay of individual images from 1967 for the Upper Santa Ana River. You can pan around and zoom in and out to see more detail.

The WRI Upper Santa Ana Imagery; Santa Ana River -1967can be found here.

 

Archive Document Search by Watershed

This map offers the visitor the ability to search a subset of the WRI’s Archival documents associated with their geographic area choice. It allows the viewer to choose an area in the Santa Ana Watershed on the map and see the documents available for that region or watershed boundary. This offers the visitor the ability to learn about the watershed and subwatersheds that are in their area of interest.

.The WRI Archive Document Search by Watershed can be found here

 

WRI Historical USGS Topographic Quadrangle map series for the Santa Ana Watershed

The searchable map allows the visitor to see the dates for each of the Quadsheets that are available for the Santa Ana Watershed. A visitor can search for either the 7.5 and 15 minute Quadsheet options. The Joseph Andrew Rowe Water Resources Archives houses a large amount of historical Quadsheets that are informative about past land use and changes in infrastructure.
It is important to make sure your Pop-Blocker is turned off for the window to open that shows the available images and associated dates.

The WRI Archive Search for USGS Quad Sheets can be found here.

For more information about the Archives contact Suzie Earp Historian-Archivist