In the desert I have only done day trips...so far...But it is amazing the difference the need to hydrate...For 60-70 mile rides, those who thought had plenty of water..They did not..have seen friends hitch hike, that would never hitch hike for such short rides...
I rarely use it..but, in the desert...From now on, I take my Blackburn Hydrapak.. Even at 90 in such dry places, you dehydrate at a much faster rate than you are accustomed to. and in our nearby deserts, there is nothing out there for those 60 miles..So better be prepared to go it alone.
Never on a regular ride, would you be so elated to see a convenience store..