This map depicts surface water extent of the San Pedro River, as surveyed on June 20, 2010. Each year, more than 100 volunteers, conservationists, and agency staff walk in groups to survey more than 130 of the 170 miles of the San Pedro River in the San Pedro River wet-dry mapping project. The data from June 2010 revealed that 37% of the river miles mapped had flowing surface water. Also available are maps from the 2007-2009 efforts.
Added April 15, 2010
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