https://species.wikimedia.org/wiki/Template:Buhl,_2011a
Template:Buhl, 2011a - Wikispecies
templatebuhlwikispecies
https://www.usgs.gov/media/images/powder-river-data-cross-section-194-2011a
Powder River Data: Cross Section 194, 2011A | U.S. Geological Survey
Location of cross section 194, Powder River, Montana (2011 view A).
powder rivercross sectiondata