Not a Challenger pilot....but the mins for the approaches are to circle mins and it’s a glide path (not slope) as mentioned above.
My recommendation is that if the airport isn’t in sight by ALLIX or DOYPE, don’t continue down.
Ive seen people screw up the Roaring Fork Visual frequently. They get cleared for the visual from 16,000 on the downwind and try the first turn in and can’t manage the descent. The valley is yours....use all of it. Take your time and enjoy the beautiful scenery. Expect tailwinds down final that shear off the lower you get.
As much as the arrival.....prepare and look over the departure too. There is the LINDZ and SAARD depts. you will have a separate OEI procedure since you won’t make the altitude for the turn up the valley. It has you go to a DME fix off DBL. not sure what avionics you have. If able....split the FMS’s and build the OEI dept in the right side.
Have fun and be safe.