Judith Drexler, Ph.D.

USGS hydrologist, Judith Drexler, bushwacking through a marsh

Detailed Description

USGS Research Hydrologist Judith Drexler bushwhacking through a marsh infested with water primrose (Ludwigia sp.) in the Sacramento-San Joaquin Delta.  Judy is studying the impact of invasive aquatic plants on marsh formation in the Delta. 


Image Dimensions: 3024 x 4032

Date Taken:

Location Taken: CA, US