I'm trying to project Redneck Hero but I don't want to get strong in the gym. What are the steepest walls I can work to build up to that climb in the boulder area?

The Wall of Justice at Clear Creek. Short overhanging sport routes.

mountainproject.com/v/wall-of-justice/105745427

There are some steeper bits like around Lorax in BC, Easter Rock, Eagle Rock, Roof Routes at Eldo, Castle Rock has a few steep bits, Primo Wall in CCC, Hipster Rock in CCC, Wall of Justice in CCC, the right side of High Wire in CCC, left side of Eiger, some spots in the Flatirons like Der Zerkle's East Face, Dinosaur Rock, backside of The Slab, scattered bits in the Flatirons, parts of Mickey Mouse Wall, Green Mountain Pinnacle, and parts of The Hand.

If it's already a project why not just train on the route itself to get stronger? That and some bouldering if you just need more horsepower to do the crux.

Edit: CCC definitely has some things that fit the bill for easier mileage. Was just thinking that it would get old heading down there from Estes.

industrial wall - eldorado

Kloof Alcove, Eldorado!