Skip to main content

Photographic negatives

Identifier: SC003-01

Scope and Contents

This series consists of photographic negatives taken by Dan Rios and other photographers at the Escondido Times-Advocate and North County Times newspapers.

Negatives are in 35 mmm, medium, and large formats, and are black and white negatives, color negatives, and color positive film.


  • 1968-2001


Conditions Governing Access

The Dan Rios papers are currently undergoing processing and are open for research. The department has internal documentation over what is in individual envelopes and can search for people, places, and events from 1968 - 2001 in advance of any visits so that we can ensure we have materials on hand for researchers. Please contact Special Collections in advance to request access.

The Special Collections and University Archives Reading Room is accessible by appointment only, Monday-Friday, 8am - 4pm. Final requests for materials must be made one hour prior to closing. Please submit requests for archival materials at least 24 hours in advance of desired appointment. Materials requested over the weekend will be available on the following Tuesday at the earliest. Please note that Special Collections and University Archives observes all campus holiday closures as noted in the Library Calendar. For more information, please send an email to


From the Collection: 222.31 Linear Feet (186 containers totaling 195 boxes and drawers of various sizes, roughly sized like postcard boxes. Metal containers house 2 or 3 drawers each.)


From the Collection: English


Arrangement is to the envelope level. Original order was kept in the arrangement of the negatives, so they are not sequentially in order. Negatives were rehoused in archivally safe sleeves.

Description contains as much context as can be gleaned from the original envelopes. In some instances, there is not much context to envelopes other than a date of creation. Departmental employees can mediate reference queries based around specific dates of publication in the papers. Researchers can contact us at if they do not find an image in this finding aid; as long as a date of publication is known, we can do a more detailed search of the negatives.

This finding aid will be updated with additional context in the future.

Repository Details

Part of the CSUSM Special Collections Repository

California State University San Marcos Library
333 S. Twin Oaks Valley Rd
San Marcos California 92096-0001 United States