http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
1 videodisc (71 min.) : sound, color ; 4 3/4 in.
This video features Sweet Surprise and the Henkel Bypass at Ginnie Springs, also known as the Devil's System, which is located outside of High Springs, FL. Sweet Surprise is a jump off of the main line between 2100 and 2200 feet penetration. The Henkel Bypass is a jump off of the main line around 3100 feet penetration and just before the Henkel Restriction at 3130 feet.
Extras: Map of "Devil's Eye System" mapped and surveyed by Steve Berman.