Francis Hallé, Vichith Lamxay and Patrick Blanc, observing a karst species during the Radeau des Cimes, Canopy Raft expedition, Photo Laurent Pyot, Phou Hin Poun NBCA, Khammouane, Laos, May 2012
Patrick Blanc and Juliana Prosperi looking at computer to identify some tree species during the Radeau des Cimes, Canopy Raft expedition, Photo AMAP, Phou Hin Poun NBCA, Khammouane, Laos, May 2012
Patrick Blanc and Francis Hallé setting herbarium specimens during the preparation of the Radeau des Cimes, Canopy Raft expedition, Phou Hin Poun NBCA, Khammouane, Laos, Jan. 2012
Patrick Blanc with Francis Hallé, Gilles Ebersolt and Dany Cleyet Marrel preparing the Radeau des Cimes, Canopy Raft expedition, Phou Hin Poun NBCA, Khammouane, Laos, Jan. 2012
Francis Hallé, Gilles Ebersolt, Dany Cleyet Marrel and Patrick Blanc examining a map during the Canopy Raft, Radeau des Cimes expedition preparation, Phou Hin Poun NBCA, Khammouane, Laos, Jan. 2012
Patrick Blanc during the Canopy Raft, Radeau des Cimes expedition preparation, Phou Hin Poun NBCA, Khammouane, Laos, Jan. 2012