2003 Watching aliens in Sahuaripa ....
2006 Cooking a meal in Sonoran outback ...
2007 Boring continental sediments in the Cabullona Basin...
2010 Coral fauna in the wall of the Cathedral of Cartagena...
2011 Revising beer quality in Austria...
2012 Boring volcanic rocks in Northern Sonora ...
2012 Revising tar quality in Trinidad ...
2013 Searching for water in the Rio Colorado ...
2013 Vacations ... horse riding in the Sugar Mill Valley.
2014 Vacations ... hiking in the Venezolean Andes.
2015 Fossil collection in Baja California.
2016 Sabbatical year.

[15 January 2017]