According to the workshop website, there are still a few spots left in the Teaching Geoscience in the Field in the 21st Century workshop. It is being held at Montana State University in Bozeman, MT, on 13-16 August 2010, with two optional activities: "GIS in the Field" on 12 August 2010 and a "Regional Field Trip" 17-10 August 2010.
A description of the workshop from the overview page:
This workshop will focus on both the traditional aspects of field instruction that have long been a foundation of geoscience education, and the emerging opportunities to engage field instruction across the geoscience curriculum. We are looking for participants who are actively teaching in the field who can share their experience and examples of field instruction in a variety of instructional settings.