2022 North Cascades
2022 Point Reyes
2022 Ossabaw Island
2021 Colorado (October)
2021 Colorado (June)
2021 Cumberland Island
2021 South Florida
2020 GSMNP
2020 Little St. Simons
2019 Italy
2019 Canada
2019 Portland
2019 Georgia Coast
2019 Sapelo Island
2018 Munich and Paris
2018 Jones Ecological Center
2018 Arizona
2018 GSMNP
2018 California
2017 Great Lakes Region
2017 GSMNP
2017 Montana and Yellowstone
2016 Tybee Island
2016 Utah (October)
2016 Jones Ecological Center
2016 Quebec
2016 Utah (March)
2016 Jekyll Island
2015 Spain
2015 Washington
2015 St John
2015 Shenandoah
2015 Okefenokee
2015 Great Smoky Mountains
2014 Montana
2014 Maine
2014 Death Valley
2013 Colorado
2013 San Antonio
2012 Chicago
2012 Charleston
2011 Colorado
2010 Staniel Cay
2009 St. Lucia
2008 USA
2007 Virginia
2005 New Zealand and Australia
