Bruce with Bill’s support welds wood supports on the east tunnel Portal
Bruce et al with the east + west tunnel portals and Bill et al with the overlook ridge wall raced to get their respective projects bedded down before the next big rain storm.
It should be obvious that a couple of dedicated folks showed up on a few days this week to get all this work done.
Note the membrane between the wood and dirt in the photo above.
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Video
Converting the Big Boy from Coal to an Oil burner