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Below is the survey as of May 27, 2003. The entrance is located at station A1. Overall almost 5,200 feet was mapped on three trips which occured on May 24 and 25. Two major mine sections remain to be completed, a mazy complex located between C16 and A2, and a single parallel passage which lies between A8 and A19. A natural cave extends northeast from C11 and is reportedly at least 400 feet long and has not been followed to an end.

Section totals so far for 15 team hours of mapping:

A Survey (entrance and upper mine): 1,859'

B Survey (middle mine): 1,702'

C Survey (middle lower mine): 1,609'

Note all these numbers are actual traversable, real surveyed length....not diluted "true horizontial distance".
This is the same plan view as above, but now with "left-right-ceiling-floor" data plotted. These extra measurements are taken at almost every station to help form a framework that creates a very rough representation of the mine.

Below is a closeup of a section of lineplot showing loop closure errors. A15 and A16 are about 15' off, while B1 is mismatched roughly 10 feet. These differences were slashed in half today when I realized the A survey was recorded with allowance for magnetic north, which the B and C surveys were not. It is still a bit early to determine causes, sometimes these things work themselves out after looking more closely at the data (I killed one inclinometer reversal error only after noticing the too station too high on the profile). At a glance the simple answer would be the tape was misread at A7-B1, A21-A16, and somewhere along A23-A24-A15. But that solution is too easy and too unlikely though, and so more than likely a deeper, more complex or culminative reason is probably out there. Though the similar 15' or so error at A15 and A16 almost suggests a consistantly misread tape, though not an even number (e.g. 83' instead of 93'), so this really amounts to speculation. At worst case we may spot check a few readings on the next trip using a different compass and let the instruments duke it out. While I'm not anal enough to worry about C1, C2, and B4 for example, I do like the station numbers to overlap a bit more than what we have now before hitting the "close loops" button on the computer and forgetting about it.

The next maps are profiles of the mine. So far the survey overall is 131 feet, though when you account for LRCF data it gets bumped up to 145' deep at the moment. We'll gain a bit more depth as we have not surveyed quite to the bottom yet. The first profile is looking northeast from the entrance "down the mine" into the hillside. Doesn't the way cool bedding control really jump out? It is this view that we see why the site is so great for bats...with the entrance in the middle, warm air is trapped in the upper mine passages while very cold air pools in the bottom. This makes a great temperature gradient that you can even feel as you walk around the site...bats love it and have all sorts of options for hibernating. The last profile shows the mine looking northwest into the side of the mine.

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