A couple years ago I shared a link on this blog that would let you view the CBC circle on your smartphone, but that link doesn't work any more. Let's try this one:
https://www.google.com/maps/@32.301632,-110.973489,24113m/data=!3m2!1e3!4b1!4m2!6m1!1szMDp8h3RZjsw.ktEPyme6rSXU
