42 Ogige Mba America
elu (kilomita 8½ site na Norris), bụ nke ahụ ezigbo mmiri iyi nke Gibbon River n'aka ekpe
ka okporo ụzọ na-agbada. Otu ọkara maịl gawa ya bụ ebe mara ụlọikwuu dị mma n'aka ekpe, mana o nwere obere ntakịrị, ma ọ bụrụ na ọ bụla, nri maka inyinya.
kilomita iri site na Norris okporo ụzọ alaka na-aga ọdịda anyanwụ na-eduga n'ọnụ ụzọ ọdịda anyanwụ. Na nke a rụtụ aka n'ụzọ ahụ hapụrụ osimiri Gibbon, rịgoro ugwu ahụ n'aka ekpe, na-agafe ihe fọrọ nke nta ka ọ bụrụ 5 kilomita gafere obodo aja na-akpụ akpụ site n'oké ọhịa pine.Ụzọ ahụ wee rịdata ruo Osimiri Firehole na Cascades of the Firehole (14½ kilomita site na Norris) nke dị naanị otu narị ụkwụ ma bụrụ nke a na-ahụ anya n'okporo ụzọ ahụ. Otú ọ dị, ha bara nnọọ uru nkwụsịtụ na mgbalị a chọrọ iji ruo ha.Ụzọ ọzọ si n'ọnụ ụzọ ọdịda anyanwụ na-esonye n'okporo ụzọ belt na Firehole Cascades. Enwere ezigbo ịkụ azụ na Osimiri Firehole maka ọwụwa anyanwụ iyi, Loch Leven, Von Behr, nwa afọ, na egwurugwu, yanakwa whitefish. Ụzọ ugbu a na-eduga na Firehole River na dị nnọọ n'ebe ugwu nke 17-maịl post si Norris bụ saịtị mara mma nke ọma. Saịtị ogige na-aga n'ihu ugbu a ruo kilomita abụọ. Na 18-maịl
