Turns out there's two ways to approach this canyon and looks like I choose the scenic way.
From Tortilla Flat, we climbed towards the backside of Geronimos Head and crossed thru upper Geronimos Ravine. From there we proceeded SE along the ridge on the backside of Geronimos Head towards Malapais. Great views from up there BTW.
There's a saddle between the Head & Malapais and after dropping down to it, we dropped into the drainage on the northside named Quartz Canyon by a fellow canyoneer. The upper canyon involved much bushwhacking and rock hopping but it was scenic enough. Lower down some slickrock, pools, and falls entered the scene. We hit a slick 20ft falls that could have been down climbed but it looked slippery while it was flowing so we decided to rappel it.
After some more rock hopping, pool avoiding & bypassing another falls we hit that sweet double drop of 120ft. The midway ledge is sharp, so be careful where you place the rope and rappel smoothly. The rope pull can be tricky on this one so rig cleanly and get a good angle on it. Just a little way further down canyon after a couple awkward down climbs you reach another 120ft dry fall.
One down, you got some slippery down climbing past big boulders before you hit Peters Canyon where we dropped gear. From there, you pass thru some of the best sections of narrows & slickrock in Peters before you hit Tortilla Canyon. By then you're tired of rock hopping and just want it to be over, so the bypass trail out of lower Tortilla to Tortilla Flat is always a welcome relief. I'd have to say this is def one of the better recently discovered Supes canyons!