Great write-up and video, glad everything turned out positive, and that the folks will be okay.
![smile smile](/images/graemlins/default/smile.gif)
I'm surprised to hear that more comm'l flights aren't routinely monitoring 121.5 MHz. Even so, being in the bottom of a canyon using a line-of-sight, low power (probably 5W) handheld radio likely limited your range quite a bit. Amazing you were able to reach a flight and have everything handed off so well. Kudos!