I went into the FCC Web Site and noted everything licensed to Nye county for VHF as well as an examination for any frequencies associated with the SNACC system for the Pahrump area. Subsequently, I traveled to Pahrump in April and monitored for a few hours and here are the results.
For the SO on VHF I would suggest programming these for the Pahrump area only: 154.785, 158.955, 158.85, 159.015, and 159.165. Enjoy the trunked radio system. A NAC of 360 appeared during reception. The traffic is also simulcasted on the SNACC system on a Pahrump site using the following frequencies: 851.1000, 851.2000, 851.2750, 851.4500, 851.7750, 851.9250, 852.0500, 852.1000, 852.4500, 852.7750, 852.8000, 852.9750, 853.0500, 853.4500, 853.5000, 853.7375, and 853.9500.
On SNACC the following TGIDs' were active: 1249 S O Dispatch, 1281 PVFD
This should get you started.