This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy. Bahasa Indonesia ∙ català ∙ čeština ∙ Deutsch ∙ eesti ∙ English ∙ español ∙ français ∙ galego ∙ italiano ∙ Nederlands ∙ português ∙ polski ∙ sicilianu ∙ suomi ∙ Tiếng Việt ∙ Türkçe ∙ български ∙ македонски ∙ русский ∙ മലയാളം ∙ 한국어 ∙ 日本語 ∙ 中文 ∙ 中文（简体） ∙ 中文（繁體） ∙ العربية ∙ فارسی ∙ +/−

Transferred from en.wikipedia to Commons by Fredlyfish4 using CommonsHelper.

• 2006-12-14 03:43 Zakkenroller 3300×4263× (7455779 bytes) San Quentin 7.5 minute Quadrangle N3752.5 - W12222.5 USGS Topo [image converted to jpg from tif & resized by uploader] Original file source: San Francisco Bay Area Regional Database URL: http://bard.wr.usgs.gov/htmldir/drg_html/drg-sanfrancisco.html D