True, but Gifford is not UHF (links only) and Gifford is labeled as Region not the forest.
171.4250 , 172.2250 and 172.3250 are the Gifford-Pinchot Repeaters
Haven't seen a recent/good channel plan to even get this Forest into the Wiki
The repeater frequencies listed are the only channels GPNF runs on. I hear them every time I am in the mountains with my 536 base unit in my truck. I also receive them from my house just west of toutle Wa. I hear them all the time on those channels.
Program the repeater frequencies in if you have not already, they work I hear them all the time on my base unit in my truck. And I receive them from my house just west of toutle Wa. The repeater frequencies are the only channels the GPNF runs on.