Dear Janet:
I'm absolutely stunned at the news of Don's sudden passing.
Don and I had worked on the huge White Rim Trail mapping project (a 3.5 year endeavor) way back from 2008 that ultimately culminated in a (no cost) resources for expeditioners (installed from a link on the Expedition Portal).
We never got to meet both of you (face-to-face), however, like the many colleagues of mine (abroad) I work with daily and will in all likelihood never meet, I developed an keen appreciation for his off-road expedition prowess and passion, his analytic approach to all things and your team approach to everything !
Our sincerest condolences,
Silversand & Dunes