at ▁compared ▁to ▁other ▁gla ci ers ▁in ▁Gla cier ▁National ▁Park , ▁and ▁lost ▁just ▁over ▁ 9 ▁percent ▁of ▁its ▁surface ▁area ▁between ▁ 1 9 6 6 ▁and ▁ 2 0 0 5 . ▁ ▁References ▁ ▁See ▁also ▁ ▁List ▁of ▁gla ci ers ▁in ▁the ▁United ▁States ▁ ▁Gla ci ers ▁in ▁Gla cier ▁National ▁Park ▁( U . S .) ▁ ▁Category : G la ci ers ▁of ▁Fl at head ▁County , ▁Mont ana ▁Category : G la ci ers ▁of ▁Gla cier ▁National ▁Park ▁( U . S .) ▁Category : G la ci ers ▁of ▁Mont ana <0x0A> </s> ▁O sm o ▁Val ton en ▁ ▁( 1 9 2 9 – 2 0 0 2 ) ▁was ▁an ▁artist ▁from ▁Finland . ▁ ▁He ▁was ▁a ▁pione er ▁of ▁kin etic ▁art ▁in ▁Finland . ▁His ▁most ▁popular ▁works ▁were ▁machines ▁which ▁drew ▁shapes ▁in ▁sand . ▁ ▁Val ton en ▁was ▁one ▁of ▁the ▁found ers ▁of ▁Dim ens io ▁group ▁in ▁ 1 9 7 2 , ▁and ▁chair ▁of ▁the ▁group ▁ 1 9 7 6 – 1 9 7 9 . ▁ ▁The ▁group ▁consisted ▁of ▁artists , ▁engine ers , ▁compos ers ▁and ▁scient ists . ▁They ▁developed ▁and ▁exhib ited ▁" engine ering ▁est het ics ". ▁ ▁Many ▁of ▁Val ton en ' s ▁works ▁are ▁based ▁on ▁simple ▁geometric ▁forms . ▁His ▁sand ▁draw ers ▁move ▁slowly ▁creating ▁shapes ▁in ▁sand , ▁rem inding ▁Japanese