Steve:

As always, you are right there with good info. And everything you've all mentioned about the D&R is much appreciated, too. However, I have a history of backing out of plans altogether when bombarded with too much "alternate" information, which is why I'm trying to limit this thread to info about the GAP (which I incorrectly identified as the "Eastern Continental Divide.")

Based on the limited transportation options available to the suggested start and end points on the GAP, it looks like it may not be practical for me at this time. But as future reference - and for others who might be considering this ride - we should probably try to stay on topic.