Verified answer

Simply put, it is 10-11 hours (about 700 miles - I don't know where someone got 836 - that's way off!) of the most boring hours you will ever undertake on a driving trip. Particularly the miles between El Paso and Ozona (350 miles). Talk about the big Zero!!

The part between San Antonio and Corpus is not too bad though.

Have fun, be careful and try to stay awake!

836 miles. I would say more time because I Include Meal /reststops to average 60 miles per Hour that would make it 13 and half hours.

agreed, it's about 11-12 hours...a whole day of driving with practically nothing to look at. I traveled it when I moved to Houston...

I checked my Rand McNally atlas, and it is about 11 hours.