Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: A shekara ta 1850, tsohuwar gandun daji ta rufe fiye da eka 2,000,000 (kilomita 8,100) na gabar tekun California. Yankin arewacin wannan yankin, da 'yan asalin Amirka suke zaune, ya jawo hankalin masu katako da yawa da kuma wasu da suka zama masu haƙa zinariya sa'ad da ƙaramin hawan zinariya ya kawo su yankin. Da yake sun kasa samun zinariya, sai suka soma yin amfani da itacen don su yi gine-gine a San Francisco da kuma wasu wurare a Yammacin Amirka. Bayan shekaru da yawa da aka yi ana sare itatuwa, sai aka soma ƙoƙari sosai don a kiyaye su. A cikin shekarun 1920 aikin kungiyar Save the Redwoods League, wanda aka kafa a 1918 don adana sauran tsofaffin bishiyoyin bishiyoyi, ya haifar da kafa Prairie Creek, Del Norte Coast, da Jedediah Smith Redwoods State Parks da sauransu. An kirkiro Redwood National Park a cikin 1968, lokacin da kusan kashi 90% na bishiyoyin Redwood na asali aka yanke. National Park Service (NPS) da California Department of Parks and Recreation (CDPR) sun haɗu da Redwood National Park tare da wuraren shakatawa na Redwood guda uku a cikin 1994 don manufar gudanar da gandun daji da kuma daidaita gandun daji da ruwa a matsayin guda ɗaya. Tsarin halittu na RNSP yana kiyaye nau'ikan dabbobi masu barazanar kamar goby na ruwa, Chinook salmon, arewacin spotted owl, da zakin teku na Steller. A cikin girmamawa ga tsarin halittu da al'adun al'adu da aka samo a cikin wuraren shakatawa, Majalisar Dinkin Duniya ta sanya su a matsayin Gidan Tarihi na Duniya a ranar 5 ga Satumba, 1980 kuma wani ɓangare na California Coast Ranges International Biosphere Reserve a ranar 30 ga Yuni, 1983.  Tambaya: Yaya yawancin tekun California da aka rufe da redwoods a 1850?
2,000,000 da ake kira acres