This place is - ridiculous. I’ve got 58 minutes left on my second camp fire and that includes a break for supper and a couple smokes.
I got tired of chasing my tail around the caves so I started chopping down mountains 
Follow up:
I only brought 8 dura hammers (14 hammers worth of durability) so even with a break I ran out of hammers before the second campfire finished.
A little over 34 SS of iron and copper, also this stuff:
Here’s another mountain:
Screenshots and a story 