Meet at Red Canyon park at 1000 on Saturday morning. This will be an intermediate/expert level ride, but lesser level riders have other options which are less strenuous.
https://www.google.com/maps/place/Red+Canyon+Park/@38.5869898,-105.2585877,15.37z/data=!4m5!3m4!1s0x87149715e1948351:0x5e67e24bd9e3aac!8m2!3d38.5859503!4d-105.2486369