This cache is the start of a small P&G trail that cuts across mission valley from east to west. You do not need to cross any fences, disturb the ground, or leave public property. Cache is winter friendly as far as location, however, if there is much snow on the ground it will make getting to the location a little tricky, but still very doable.
Cache is located within the public right-away off a county road. There is plenty of space to pull off. A tribal recreation permit may be needed to search for this cache.