Very top of Horseshoe Bend hill is the nearest place. Turn left just before you start down the hill into Horseshoe Bend. From that turn, drive 200-2000 yards and shoot to the left (you will see where others have shot).
As Avamor develops, this spot will be a no-no, but I think it's still ok as of right now.
Check the city limits first, as Eagle just annexed a HUGE amount of land that direction.