As we have no option but to start and end in Los Angeles, (it's where we store our motorcycle) this is how it's currently looking:
Denver (weather permitting; we will be there in Oct and couldn't do it last time we tried in Oct,due to snow);
Big Bend NP;
Then most probably El Paso,Phoenix and back to LA .......although I am open to suggestions for this last bit. It's a journey we have done before (Tombstone was fun) and we have done the caverns at Carlsbad too.
How does this look? Google maps has it at around 5000 miles (give or take) so that is an easy trip for us. Last time we did 7000 in the same time frame.