Ken...I remember talking with Tom one afternoon by the stream and I was
joking that fishing at Penn's was like taking a course in Flyfishing 101.
but it is so much more than that...heck, I am lucky to catch a fish on those
waters but when you do...it's freaking great....it's more like advanced fish
708!

You cannot believe how ....how ... *is the word 'fertile' those waters
are....

The word you're searching for is "fecund."
I've been around the world, fished for trout in places that have been
written about for hundreds of years and have yet found a place that
continues to amaze/awe/beguile me like Penns. And, at the end of the
day, you can buy an AMERICAN beer.
Frank Reid