We were using power tools to dig the tunnel. But in a tunnel, you don't
want to be running gas motors. So we had this machine. I'm pretty sure
it was a compressor and the tools were pneumatic, but for some reason I'm not
remembering clearly. This would have been down by the tent in the previous
photos.
Date: 2025:10:15 12:15:11
    File: wBLUE_GLACIER_032.jpg
Camera: PENTAX K-5 -- Lens: smc PENTAX-D FA Macro 100mm F2.8 WR at 100.0 mm -- Exposure: 1/60 f/8.0 ISO 100