LOCATIONS SUBMITTING DATA FOR 1993 State Location Code Colorado Fort Collins CO1 District of Columbia Washington Monument Grounds DC1 Idaho Rathdrum ID3 Illinois Carbondale IL2 Iowa Ames IA1 Kansas Wichita KS2 Maryland Beltsville UB1 Maryland Silver Spring MD1 Missouri St. Louis MO3 Nebraska Lincoln NE1 New Jersey North Brunswick NJ1 New Jersey Pittstown NJ2 Oregon Hubbard OR1 Pennsylvania University Park PA1 (mowed six times in 1993) Rhode Island Kingston RI1 Virginia Norton VA6 Washington Pullman WA1