USGS Survey Finds Upper Lake Mary Storage Holds Steady Near Flagstaff
September 09, 2026
September 09, 2026
WASHINGTON, Sept. 9 (TNSLrpt) -- The U.S. Geological Survey issued Open-File Report 20261011, 'Bathymetric Survey and Storage Capacity of Upper Lake Mary near Flagstaff, Arizona in 2024,' by Joseph A. Affinati, Matt A. Kaplinski, Paul E. Grams and Katherine A. Chapman. Prepared in cooperation with the city of Flagstaff, the report finds no apparent decline in the reservoir's storage capacity when compared with surveys completed in the 1950s and 2006. The report was issued in 2026. . . .
