Erase function from a symbology class?????

Discussion created by kailuaboy on Jan 25, 2013
Latest reply on Feb 21, 2013 by MSummers-esristaff

I have a map of rainfall data for a state with several classes of rainfall, 5in-10in, 10-15in, etc....  I would like to remove segments of rivers from another layer that fall in areas with low rainfall; ie. less than 10 inches per year.  Is it possible to use the erase function to achieve this????  Any help would be appreciated.

- Mark