UVM Forest Ecologist Bill Keeton (IMAGE) University of Vermont Caption Along the border between Ukraine and Romania, University of Vermont forest scientist Bill Keeton (center) trains Ukrainian forest rangers in forest measurement techniques during an expedition he led to a remote primeval forest in the Carpathian Mountains. Credit Bill Keeton Usage Restrictions with coverage of associated story License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.