Mike Coltrin is a physical chemist by training and was a member of the technical staff at Sandia National Laboratories before his recent retirement. He has enjoyed hiking in the Sa...показать большеMike Coltrin is a physical chemist by training and was a member of the technical staff at Sandia National Laboratories before his recent retirement. He has enjoyed hiking in the Sandia Mountains for more than thirty-five years.показать меньше