Gidan kallo (McMurdo Station)

Dutsen Observation yana da tsayin  tudu kusa da tashar McMurdo a Antarctica kuma ana kiransa "Ob Hill". Ana hawa akai-akai don samun kyawawan wuraren kallo a duk faɗin nahiyar. Tsayayyen sararin sama na yau da kullun yana ba da kyakkyawan gani. Wani abin tunawa a saman tudun, wanda aka gina a cikin 1913, wani wurin tarihi ne na yarjejeniyar Antarctica mai lamba HSM-20.

Dutsen Observation wani yanki ne na lava kuma ɗayan manyan tuddai masu aman wuta da suka haɗa da Hut Point Peninsula . 

 Observation Hill Cross 
Bayan mutuwarsu a farkon shekara ta 1912, an gano mambobin jam'iyyar Robert Falcon Scott na karshe ta hanyar bincike karkashin jagorancin likitan tiyata Edward L. Atkinson . Ƙungiyar agajin ta ɗauki fim ɗinsu na hoto, samfuran kimiyya, da sauran kayan aiki. An bar gawar Scott da mutanensa a cikin tantinsu, kuma daga baya jam’iyyun ba su iya gano wurin da sansanin yake ba, tun da dusar ƙanƙara ta rufe yankin. Ƙarni na guguwa da dusar ƙanƙara sun rufe kogon da alfarwa, waɗanda yanzu ke cikin rufin Ross Ice Shelf yayin da yake sannu a hankali inci zuwa Tekun Ross . A cikin 2001, masanin glaciologist Charles R. Bentley ya kiyasta cewa tantin da gawarwakin yana ƙarƙashin kimanin ƙafa 75 (m23) na kankara kuma kusan mil 30 (48) km) daga inda suka mutu; ya yi hasashen cewa a cikin kimanin shekaru 275 gawarwakin za su isa Tekun Ross, kuma watakila za su yi iyo a cikin wani dutsen kankara.

Masu binciken sun koma sansanin su na McMurdo Sound don jiran jirgin agajin. Bayan ya isa, sun yi aiki don gina wani abin tunawa - giciye na katako mai ƙafa tara, wanda aka rubuta tare da sunayen masu mutuwa da kuma layin karshe na waƙar Alfred Tennyson " Ulysses ", wanda ya karanta "Don yin ƙoƙari, neman, samun, kuma kada ku ba da kyauta." A ranar 22 ga Janairu, 1913, bayan tafiya mai wahala ta kwanaki biyu, an gina giciye a kan koli na Dutsen Observation, yana kallon sansanin kuma yana fuskantar "Barrier" - Ross Ice Shelf, wanda ƙungiyar Scott ta mutu.  A cikin 1972, an ayyana giciye a matsayin ɗaya daga cikin wuraren Tarihi na farko da Monuments a Antarctica ta masu rattaba hannu kan yarjejeniyar Antarctic, a matsayin HSM-20.  

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