re: Freshwater trout in Colorado fishing off the riverbank?

Regulations vary depending on what river, what particular stretch of river, and what dates. That will determine what is legal to fish with. 4# mono is my go-to on all my trout gear, but that's in Georgia where they might not get as big. I've never had any break off 4# mono.

Go-to lures for trout are inline spinners of the Blue Fox and Panther Martin variety. Millions of color combinations. 1/16 oz or smaller, and you might need some split shot to get it down into deeper holes.

Popular colors-

All Brass- Panther Martin or Blue Fox
Black body yellow dots - Panther Martin
"Brown Trout Dressed" - Panther Martin

Treble hooks are banned in some trout waters, as I stated above, check the regs first before you go outfitting yourself with a bunch of illegal tackle.