Gangwon International Biennale 2018, South Korea

Georgia Museum of Art, Sculpture Garden Installation, Terra Verte, May 31, 2014 – May 31, 2015

Research Triangle Park, Creative Summit, May 30 – June 2, 2013 

Sculpture Magazine June 2012

Broadway Green, New York City, Sculpture Installation Commission, July/August 2012. Press release. Concept.

Denver, Colorado, Art in Public Places Commission, 2011-2014

Charlotte, North-Carolina, CATS Light Rail Station Commission, 2011-2017

Making Earth Work: Leighton and Geist's land art in Charlotte. Linda Luise Brown, in: Charlotte Viewpoint, March 8, 2012