Keep in mind that each Forest Service region approaches communications differently, especially when it concerns law enforcement. Some regions don't want their fire/other functions dispatchers handling law enforcement dispatching at all or are attempting to terminate LE dispatching by their regular dispatchers. Two regions that are taking this approach are R3 and R4. Region 5 is taking the complete opposite approach where the dispatch centers are fully trained to use the state of California law enforcement terminals to run NCIC, DMV and other systems for running plates and people for criminal history, wants, warrants, etc. R5 is in the process of building a statewide LE net with the vision of possibly establishing one or two centralized LE dispatch centers. R3 is migrating to a central LE dispatch center in Phoenix that uses satellite radio throughout AZ and NM. R4 is farming out LE dispatching with some forests having their LE officers being dispatched by state and local agencies. For example, the Humboldt-Toiyabe NF is using the NV Dept of Wildlife dispatch their officers, including maintaining officer status.
The system of not having multiple frequencies for different repeaters and consolidating to one district, zone or national forest frequency is not at all new. Region 5 has been doing this since burst tone technology started to be used in the late 1960's. When CTCSS tone technology became available they switched to it. R3 started using this beginning in 1980, with one national forest per year converting to it so that it was region wide by about 1991.
I worked in fire management for the National Park Service for my career and we started converting to CTCSS for our nets, in some cases, in the early 80's. We often had park nets with all the repeaters on the same output frequency, but had different input frequencies for each repeater, so that each repeater had a different channel. This ate up radio memory once the King radios arrived, so a very gradual conversion to a single repeater pair with each repeater having a unique CTCSS tone was undertaken. Then some of the larger parks started expanding from one "park net" to several so that the protection rangers (LE, EMS, fire, SAR) had a net, fire had a net, admin had a net, or whatever suited that park. Now, some parks have gone back to each repeater having different output frequency, the same input frequency on a computer voting system and having the repeaters multicast so that no matter where you are in the park you will hear everything on the net.
Since retirement and my starting in the scanner hobby, I've managed to get my hands on frequency directories for some of the Geographic Area Coordination Centers, GACC's of which there are 10 nationwide, but have never come across one for the Rocky Mtn GACC. Some GACC's haven't even published one until the last 1-2 years, while others, such as the two in California have published a statewide directory since around 1992.
I don't know how much experience you've had outside USFS R2, so I thought I would give you this info. I worked with surrounding national forests at the five parks I worked on in USFS regions 1, 2, 3 and 5. I assume you work for the USFS in R2, maybe you work somewhere else.
