The Tongue River west of Sheridan has good water flow in late October but I’ve never fished it, just passed over while trying to find elk.

The Wind River is a great river. South of Cody a bit.

Some info about the Shoshone River. It runs through Cody. https://www.wyomingfishing.net/fishtails/ft_shoshone.htm

As for the rod I would bring a 4-6 weight. 5 weight will do anything you ‘need’ it to do.

You could be fishing in 60 degree sunshine or in a blizzard. I would consider size 16-20 mayfly patterns and midges. I wouldn’t expect heavy hatches for a long day of dry fly fishing but you might want some hopper or stimulator patterns for hopper/dropper setup.

Edit: hopper/dropper because you could see low water flows and that’s the setup I use for shallow water. If I’m fishing “deep” water and there are no fish rising I use a dedicated nymph 2-fly rig.

Last edited by joelkdouglas; 07/19/20.