Geologic Road Sign on Highway 16

Significant Geologic Boundary

A geologic interpretive sign along highway 16 in the Black Hills of South Dakota.

Pictured left 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: 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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Additional information and resources supporting the geologic road sign:

Lester, J.L., and Rahn, P.H., 2001, Geologic map of the Rockerville quadrangle, South Dakota: South Dakota Geological Survey 7.5 Minute Geologic Quadrangle map 3, scale 1:24,000.