We split from Vegas before the temperature topped 100 and headed South on I-15 again. After a couple hours, we passed through Barstow, closing our 3400 mile loop. The only part of the drives I do not like are those from San Diego to Vegas, San Diego to Needles, San Diego to Tucson and San Diego through Los Angeles. Unfortunately, when one lives in the Southwest corner of this country, there is just no other way out unless you go to Mexico to vacation.