I don't have a single #BestFieldWorkPic -they ALL are! But here's a fav:
Nevado de Toluca, Mexico '07, 4400 m elev. http://t.co/aQu4j7iS1E

Near the summit of Nevado de Toluca, Mexico. Standing at about 4500 m elev.
#BestFieldWorkPic http://t.co/aHO8vTAjFq

Struggling to choose a #BestFieldWorkPic thanks to our amazing Field Technicians who share so many!! You guys rock!

Com dois dias de atraso, tô curtindo as fotos da #BestFieldWorkPic

monitoring #invasive #roundgoby in Flanders through standardised angling sessions: great fun #BestFieldWorkPic http://t.co/ES72YAngcS

colleague getting too close with study species, Canada geese chicks on the move #bestfieldworkpic http://t.co/WUlrtVLWWk

#BestFieldWorkPic: My impression of a GPS unit "Xmas tree" - studying visitor behavior in El Cap Meadow @YosemiteNPS. http://t.co/QAFZABhgua