| Show MOVEMENT OF A GLACIER one a mile long in southern bock ies shifted twenty seven feet in a year it had long been supposed that no true glaciers remain in the south of wyoming a supposition now known to be incorrect says juilus henderson la harper s magazine north of longs peak two ice fields have been described and referred to as glaciers by men whose determinations are entitled considerable weight though on the whole they partake more of ohp nature of neve and are so considered by geologists this difference of opinion is entirely ex on the ground that the divid ing line between neve and glacier Is indistinct tie one passing into the other byrnse sible gr dation how ever explorations carried on in the baht five years have brought to light an ice stream which Is so distinctly a glacier as to leave no chance for a dispute as to its character it has been visited by experienced geologists mapped photographed and thoroughly studied arapahoe glacier Is about a mile long and Is situated amid scenery as inspiring as any in the southern rock ies it occupies an amphitheater or arapahoe peaks the peaks and their athin sharp serrated connecting ridge forming the semi circular rim of the cl que the ridges running eastward from the north and south peaks form ing the walls of the ancient glacial valley the highest point on the rim pf the cirque Is 13 feet above sea level no measurements were necessary to convince pon vince our first exploring party that the ice was moving to the student of glacial phenomena the evidence on every hand was easily read as a print ed page and as convincing as a mathe demonstration but it remained to determine the rate of movement consequently on a later visit we set up the instruments on the north wall and placed a line of zinc tablets across the face of the ice re turning exactly one year later we found that the tablets had moved in amounts varying from 1115 feet at a point feet from the edge to 27 7 feet at a point near the center |
