A map of the Winston area, Douglas County, Oreg., shows areal geology and locations and chemical diagrams of wells with water analyses. Another map of the area has diagrams showing the depth to water, pumping level, total depth, and yields of selected wells. Reported yields of wells range from less than 1 to as much as 70 gallons per minute; the average is less than 10. A table listing chemical analyses of water shows that, although most ground water is of adequate quality for domestic use, some wells yield water with dissolved constituents in excess of recommended limits. (Woodard-USGS)