San Francisco Estuary Historical

Description:

Author is the United States Geological Survey. The source is San Francisco Estuary Institute (sfei.org). Historical View Primary Sources: US Coast Survey, US Geological Survey, US Dept of Agriculture, Spanish disenos, explorers' journals, and local archives.

Attribution:

Wikimedia Commons (https://commons.wikimedia.org/wiki/File:Sf_Estuary_Historical.gif)

Date:

2010