hike with Captain - CNRA's hidden stone-masonry - rediscovered - 5th structure

In the thirties, the CCC did a lot of improvements at CNRA, including buildings made of native stone by talented masons. They also built culverts and bridges using those same stones, styles, and techniques. Over time traffic has changed and most of those structures are overlooked. we have videos of four other, similar, structures (and how Captain and I got to them) on Rumble.