A few flies I trust (and why I ask the fly shop the rest)
Okay. We've spent this whole module on water, seams and riffles and where a trout wants to sit, and I did that on purpose before we ever talked flies. Here's the thing. I feel like beginners get this backwards. They want to know exactly which fly first, like it's a magic password, and the water part is actually the part that catches fish.
But you do need something on the end of your line. So let's talk flies, honestly, including the parts I'm not great at.
First, my actual opinion
A beginner who can read water and is fishing an okay fly will out-fish a guy with a fly box like a jewelry store who's casting into dead water. I will say this until you believe me. The fly matters. The water matters more. If you only have room in your brain for one thing today, let it be that.
The short list I actually trust
I am not going to pretend I'm an entomologist. I'm not. Matching the hatch, figuring out exactly what bug is coming off the water on a given afternoon, that's real science and some people are wonderful at it. I mostly guess and get lucky. But over twelve-ish years I've settled on a handful of flies that have caught me enough fish on the Provo that I keep coming back to them.
An Adams, size 14 or 16. This is my default dry fly. It doesn't look like one specific bug, it looks like a general suggestion of a bug, and trout seem fine with that. If I don't know what's happening on the water and something's rising, I start here.
A Pheasant Tail nymph, size 16 or 18. This is doing the work under the surface most days. Trout eat underwater way more than they eat off the top, whatever the pretty photos in the magazines suggest. If nothing's rising, this is probably in the water.
A small Prince nymph. Similar idea, a little flashier. I like it in faster riffly water where a fish needs to notice something quick.
A Woolly Bugger, olive or black. Bigger fly, streamer style, good for when you want to cover water and aren't being precise about matching anything. Feels less delicate to fish, which some days is a relief.
Four flies. That's genuinely most of what's in my box that matters. Everything else in there is stuff I bought because it looked cool at the shop, which, guilty.
Why I still ask the fly shop
Here's my gap and I'll just say it plainly, I'm bad at bugs. I can't always tell you what's actually hatching on a given day, and the honest answer changes with the season and even the week. So when I get up to the river and things are quiet, or I'm somewhere new, I stop in at a fly shop and ask what's working right now. Not because I'm too proud, I'm not, I just know my limits. Five minutes of talking to someone who was on that stretch yesterday beats twenty minutes of me squinting at the water going hmm.
You should do the same. It's not cheating. It's using the resource that's sitting right there.
Practical stuff for at home
Before your next trip, sit down for ten minutes and just look at flies, in a shop bin or online, and get comfortable with the size numbers. Higher number, smaller fly. A size 18 looks tiny and a size 6 looks like you could stuff a burrito with it. You don't need to memorize insect names. You need to not be confused by the numbers when someone hands you a fly and says "try a 16."
Also, practice tying your clinch knot onto an actual fly at your kitchen table, not just a bare hook. The eye on a real fly is smaller and fussier and your fingers need the practice on the real thing, especially if your eyes aren't what they used to be (mine aren't).
Which reminds me. My very first time on the river, a neighbor took me up and I fished for three hours and caught exactly nothing. Zero. I came home and Tricia asked how it went and I said, "I didn't catch anything and I want to go back tomorrow." She just looked at me like I'd lost something. I hadn't caught a single fish and I still couldn't wait to go back. I tell you that because the fly, the fancy names, all of it, matters less than you think it does that first day. You're going to fish an Adams or a Pheasant Tail and maybe catch nothing and still have a great afternoon, and that counts as a good day. It really does.
Before next time: pick out one dry fly and one nymph from the list above, actually buy them or borrow them, and get them in your hand so they stop being abstract.