Many of the challenge caches in this series were inspired by the challenge caches put out by the League of Idaho Cachers and used with their permission.
A four wheel drive or high clearance vehicle is highly recommended for access to these caches. The caches are located close to the dirt road so use the conveyance of your choice. Just don't go off the road with a vehicle to get the cache.
Please don't head out to this area if it is raining or wet as, at best, you'll tear up the road and, at worst, you'll get stuck. If you're smart, you will only use four wheel drive to get out of the desert if it starts raining or leave before it rains if you do not have a four wheel drive. I'd highly recommend waiting for the snow to melt before trying for this series of caches.
The terrain rating is for the road if it gets wet.
These caches were not intended to contain trade items. They are also not there so you can cache swap or leap frog to complete the series faster.