Jill Heinerth drives Dr. Bill Stone's Digital Wall Mapper during explorations of Wakulla Springs.
Wall Mapper
Image courtesy of US Deep Caving Team Inc., Bermuda Deep Water Caves 2011 Exploration, NOAA-OER. Download larger version (jpg, 2.4 MB).

Jill Heinerth drives Dr. Bill Stone's Digital Wall Mapper during explorations of Wakulla Springs.

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