Google maps has an issue with suggesting impassable roads for bike riders. Changing strategy to routes by road by car without interstate highways. In weighing risks, will try this approach. Purchased a paper map of Arizona and coordinating with phone calls to RV parks that will take cyclists with tents who need power. Extended stay in Winslow for planning next approximate 600 miles to La Jolla Cove in San Diego. Lots of stretches to consider through many assents, high traffic roads and remote airid areas not conducive to finding food, water or rest. Doable, but can be done with careful planning.
