Representatives of the seven organizations listed below collaborated in erecting an 8 x 4 foot geologic interpretive sign along highway 16 in the Black Hills of South Dakota.

Pictured here from left to right to right: Tom Durkin (SD Space Grant Consortium), Perry Rahn (SDSM&T), Gary Haag (BHNF), John Stamm (USGS),

Mark Fahrenbach (SDGS), Mark Anderson (USGS), and Foster Sawyer (SDSM&T)

(Photo taken August 23, 2013)

Not pictured are: Derric Iles (SDGS), Nuri Uzunlar (Black Hills Natural Sciences Field Station, SDSM&T), Josh Valder (USGS), Gary Engel (DOT), and John Matthesen (DOT)

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