TY - RPRT TI - Contour map showing minimum depth to ground water, Upper Santa Ana River Valley, California, 1973-1979 AU - S. E. Carson AU - J. C. Matti PY - 1985 DO - 10.3133/mf1802 UR - https://pubs.usgs.gov/publication/mf1802 ID - mf1802 ER -