so i made a trip to the canyon yesterday and can verify that they did switch to P25 for 99% of there comms on law and fire for the park
i only heard once the old law freq used during the day
the new freqs follow with all of a nac of 293
170.3875
171.5375
162.1625
169.6375
171.675
169.1625
all seem to be in use at the same time or most of them
they do have a med net freq too
171.650 / nac 293 this is verified as i followed the LE's over to it
and a few misc freqs
168.5 / not used much
171.325 / nac 670 was enc all day that i heard
so theres the rundown as what i found yesterday
enjoy
Jerry