There are indeed a lot of fire frequencies, but there are none that are dedicated to Montrose. I would recommend either 46.26 or on of the cross band repeaters to help you hear both sides of the conversation as 46.26 is simplex CSQ.
From Montrose you should be able to hear Briarcliff, Croton (if its still there) or Yorktowns Cross Band repeaters, but realize these repeat ALL of the 46.26 transmissions they can hear which ican be a lot.
As for the trunked system, no one is dispatched on the trunk system, only Fire Ops and very little EMS ops. There is not as much activity on the trunked system as you would think, unless there is an active fire or similar emergency (like the storm yesterday), then all bets are off.
I would also program all the fireground frequencies in. You rarely hear anything unless they are very close and if they are very close you probably want to hear what they are saying.
I leave all the Fire and EMS talkgroups in and it is manageable listening, or you can leave in only your battalion, but I have found the FDs operating on Ops frequencies other than their normal batallion so it is up to you.
Peekskill and Buchanan (and Verplank) Fire same thing.
Peekskill PD dispatches for Buchanan PD (Freq in Database)
Final note: The County Police is secondary in Cortland State Police are Primary. The county car assigned is 27-Charlie. They can be heard on both 155.310 (County) and 155.505/154.920 (State PD)
Bottom line, you need to experiement when you get there and decide what works best for you listening enjoyment.
