https://www.google.com/maps/place/Caney+Picnic+Area,+Ava,+MO+65608/@36.744375,-92.7615532,16.75z/data=!4m5!3m4!1s0x87cfc87353a2f3f3:0xd8cb493ce6fe905c!8m2!3d36.7440361!4d-92.7586922 It is a little far, but much darker than most suggestions. It has an Easterly face so their is no big towns to muck up your pictures, or stargazing, I do a lot of night photography. If you can travel, Ponca Arkansas. You will see stars, and elk if you are lucky, plus it is a beautiful drive. Sorry if I am late to this post.