TY - RPRT TI - Two maps of Dade County, Florida, showing the average annual water levels, 1950, and the approximate average water levels for the period 1940-1950 AU - N.D. Hoy PY - 1952 DO - 10.3133/ofr5280 UR - https://pubs.usgs.gov/publication/ofr5280 ID - ofr5280 ER -