Virginia Tech, Extension Service2019-10-192019-10-191939-05-08http://hdl.handle.net/10919/94663Collection trough at bottom of portable pasture runoff plot.negative, 60 mm.image/jpegIn CopyrightApplied ScienceAgricultureVirginia Extension - Project 10Agricultural EngineeringContour PastureErosion ControlSoil and Water ConservationProject 10 Image - VA Unknown County - 1939-05-08Biological Systems Engineering, Virginia TechStill Image