Barbara and Chuck on PBS/NOVAPBS presented the three-part NOVA series Making North America (off-site link) in 2015. Part 2 explains the Western Interior Seaway. Chuck Bonner and Barbara Shelton, along with Kirk Johnson, Smithsonian museum director and narrator of the series, went on a field expedition into the chalk beds of western Kansas. All of us had a great time filming this part of the episode even if the temperature was 100 degrees in August of 2014! You can click on any photograph to see a larger version.
©2015 Keystone Gallery / Photos © Barbara Shelton unless otherwise noted