I would not rely on the RFWiz Scanner listings, many are 8+ yrs out of date.
Between Here, ScanNewEngland and the Vermont Yahoogroup we have a 1-2-3 Hit of the Best info... Problem is as many of us know, folks want the info handed and few actually search and then make the submission.
Remember, the sites are based on USER submission, NOT the FCC data
RFWIZ also has Springfield listed as 460.175. No idea how up to date their site as.
Also found a Yahoo groups post from 2005 that said they were on 460.175 w/CTCSS 118.8
If you can confirm the tone, post back on here.