good advice, I've started to notice i-phone holders on cyclist handlebars, I think I have to start doing that
I actually decided to test out the route a little bit over the weekend. I got waylaid by a small ECG sign that brought me to a shopping mall and veered me way off of the trail. Actually, the GPS also missed the trail. I was not impressed. I cycled around the area on my own and I found the trail. I then followed it back to the trail head.
But yeah, gosh, if that was an emergency and I was relying on the trail markers, i'd have been toast. Just goes to show you that you have to trust your intuition over your observations, at least sometimes.