▁quarter ▁to ▁two ▁miles . ▁In ▁its ▁lower ▁portion , ▁the ▁gla cier ▁s lop es ▁at ▁the ▁rate ▁of ▁ 6 0 0 ▁to ▁ 7 0 0 ▁feet ▁per ▁mile , ▁att aining ▁an ▁elev ation ▁of ▁ 2 5 0 0 ▁feet ▁three ▁miles ▁and ▁a ▁half ▁from ▁the ▁front , ▁and ▁asc ending ▁gradually ▁to ▁ 6 0 0 0 ▁or ▁ 7 0 0 0 ▁foot ▁cir ques ▁east ▁of ▁M t . ▁Gl enn . ▁The ▁Y ale ▁Gla cier , ▁though ▁wider ▁at ▁the ▁termin us , ▁is ▁probably ▁not ▁as ▁long ▁as ▁the ▁Harvard . ▁It ▁termin ates ▁in ▁the ▁Y ale ▁Arm ▁of ▁College ▁F i ord , ▁with ▁an ▁unus ually ▁irregular ▁front , ▁the ▁south ▁side ▁of ▁the ▁gla cier ▁extending ▁\\ ▁miles ▁further ▁down ▁the ▁fi ord ▁than ▁the ▁north ▁side . ▁This ▁terminal ▁cl iff ▁is ▁between ▁ 2 0 0 ▁and ▁ 3 0 0 ▁feet ▁high . ▁There ▁are ▁well - mark ed ▁later al ▁mor aines , ▁but ▁no ▁med ial ▁mor aines . ▁In ▁the ▁absence ▁of ▁a ▁number ▁of ▁large ▁trib ut aries ▁which ▁supply ▁quantities ▁of ▁ice , ▁and ▁later al ▁mor aines ▁that ▁become ▁med ial s , ▁Y ale ▁Gla cier ▁diff ers ▁very ▁decided ly ▁from ▁Harvard ▁Gla cier . ▁The ▁distant ▁trib ut aries ▁are ▁rather ▁small ▁gla ci ers ▁cas c ading ▁from ▁extensive ▁ne ve ▁fields ▁on ▁the ▁mountain ▁s lop es . ▁In ▁the ▁lower ▁part ▁of