I had a good trip up to Pinedale, WY last week.
Fished the Greys River outside of Alpine the first day for about 30 minutes and didn't have much luck. We only had about an hour to kill before needing to drive to Pinedale and just pulled over at a decent looking spot to cast a bit. I think we should have driven further up the forest road for better water; it was moving too fast where we were and was pretty difficult to fish. It was a beautiful river though and I'd like to go back at some point.
That evening we fished some private water on the upper New Fork River. My old boss grew up in Pinedale and one of his childhood friends has some old family land north of town that was spectacular. I think this piece was ~900 acres or so and boss' friend and his brother and sister all had little 1 room cabins at different places along the river. The flows were already pretty low through this stretch but we still caught a few small ones on 2/3 wts. We cooked burgers on the front porch of the cabin, had a campfire, drank some bourbon and waited for the stars to come out. I loved it.
The next day we did a walk/wade on Faler Creek with guides from Two Rivers Fishing Co - https://www.tworiversfishing.com/ I've posted about this water before on here - had one of my best fly fishing days ever at Faler 6-7 years ago. It's a long hike into the creek from where you have to park, but the water is so fucking good and there are huge fish everywhere. It was a blue bird day with no clouds in the sky so the fishing was pretty tough. My best was a ~18" Cutthroat that blew up on a big ass Circus Peanut. Only got 2 other fish to hand but had a great day. Best fish was a ~20" Brown that my old boss caught. If you are ever up around Pinedale I highly recommend booking a guide through Two Rivers and going to fish this place. I think they have the exclusive rights to the water but our guide said most people want to float the Green or New Fork and so Faler doesn't get a ton of pressure since it is walk/wade only.
The last day we floated the New Fork and had a blast. We didn't catch a lot of big fish, but I think me and my buddy caught 69 fish and the other boat that floated our same beat caught 55 or so. We caught Browns, Rainbows, a few Cutties, and quite a few big Whitefish. This is a beautiful river as well and the flow was still great for being this late in the year. We scraped bottom in a few places but didn't have to hop out or anything like that. Our guide was a great kid who worked his ass off for us and really enjoyed having some younger guys who were fired up to be out there. We drank beers, listened to music, and kissed the "fish whistle" while catching a ton of fish. Can't really ask for much more than that.
I'll post some pics here in a bit. If you're planning a trip to WY, I'd strongly recommend getting out of Jackson to fish around Pinedale. We flew in and out of Jackson and it was a zoo with people and traffic everywhere.