Ok, here's what I know and it ain't all that much.
I don't think 71cfs is peak but I don't know off the top of my head what is.
As far as I know public access is limited and changes from time to time. Below Halligan it's private until you get to the Nature Conservency's property, then it's off-limits unless you have permission. I haven't checked lately (in this century) but did the first few years after the NC bought the land. At that time, you had to request a permit on a certain day in the spring, when all the planets were aligned........
anyway, it didn't sound too likely so I never tried and don't know anyone that did or anyone that has fished in there. Rumor was, it was the private domain of the fat cat contributors to the Conservency. Don't know for sure.
Many years ago you used to be able to drive in above Halligan ( Middle Cherokee Park ), but last time I tried, that part of the river had been leased to a private fishing club.
There was another walk-in access in an area called Trails End, further upriver. Was in there a time or two but wasn't all that impressed with the fishing and all I remember about that spot was the large snake that we encountered lying in the middle if the trail. It turned out to be a Bull snake, but it was big enough to get our attention.
Access is more predictable in the Upper Cherokee Park area, but the fishing, in my experience is not great.
Used to be some pretty big fish above Halligan and I'm sure there were below but the canyon below Halligan was subjected to flushing flows some years back by the irrigation company. Word was it wiped out the fishery directly below.
Exploring the North Fork involves a lot of driving on dirt roads (4x4 would be helpful) over 30 miles I think to reach Upper Cherokee.
Word used to be: the fishings great and the reason there's nobody there is rattlesnakes though I never did see one.
Anybody out there that knows any secret spots ain't gonna be talkin'. :-X
The North Fork of the Poudre is one of those places you'll hear good things about every once in a while, but you won't hear much detail. A great place to explore and keep what you find to yourself.
Bill