Thank you all for your responses. Think I will hop over to the California side and take US 95 north after our night in Ehrenberg. We plan to spend the night at Arizona Oasis RV Resort and the head north the next day.
Reference the comment about I-8 to Gila Bend and then north on 85 to I-10. That is the way we always go. Don't want to get mixed up in the Phoenix traffic. It is bad enough is a car much less in a motor home.
Anyone have any suggestions for RV Parks in the Barstow area? We plan to spend the night there for our second night north.
Thanks
Carl