----------------------------Original message---------------------------- I have researched the 1:62,500 SCALE, 15 Minute Maps of California that have been published. Looking back on what the USGS has done at that scale for the areas in question, there weren't 15 Minute maps for most of those sites. There were 30 Minute Maps for many of the areas. I did find 15 Minute maps named for the following: 41121 A1 Bieber, California 41121 A3 Fall River Mills, California 41121 C1 Crank Mtn., California and 41121 C3 White Horse, California I hope this will help you. Bruce H. USGS-NMD-OIS-BESI-ESIMS MS-509 BITNET%"BHUBBARD@USGSRESV"