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Treak Cliff Cavern (Popularity:  )
http://www.bluejohnstone.com
Featuring one of only two working Blue John Stone mines in the world. Includes photos, hours, admission prices, events list, directions and contact details. Located in Castleton.
Category:
Recreation - Outdoors - Speleology - Show Caves
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NetComposites (Popularity: )
http://www.netcomposites.com
Composites and Reinforced Plastics information center. Includes books, job listings, articles. Useful data for students or people new to the technology. All resisn and reinforcements included.
Category:
Business - Industrial Goods and Services - Materials - Composites
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