Tsibirin Richardson
Tsibirin Richardson tsohon tsibiri ne a San Francisco Bay, a arewacin California dake akasar Amurka . Yayin da ruwa da marsh suka kewaye shi (kuma ya bayyana a matsayin tsibiri a cikin taswirar da aka bincika a cikin shekara ta 1894),  haɓaka yankunan da ke kewaye ya sa ƙasa ta kewaye shi gaba ɗaya a tsakiyar ƙarni na 20.  Tana cikin gundumar Marin, a cikin garin Corte Madera .  Matsayin sa shine  , kuma Amurka Sashen Binciken (USGS) ya ba ta tadawa kamar 16 Fata (4.9 m) a shekara ta 1981.  Yana kusa da ƙarshen Corte Madera Creek, inda yake kwarara zuwa San Francisco Bay.

A cikin shekara ta 1885, ta sami mallakar Corte Madera Rancho del Presidio, ɗayan manyan wuraren kiwo a cikin gundumar Marin a lokacin.  Amurka ta kai karar masu mallakarta a cikin shekara ta 1891, suna zargin sun sayi tsibirin (tsakanin kusan 4,000 acres (1,600 ha) na ƙasa a yankin) ta hanyar "makircin ƙarya da zamba, ana zargin cewa bayanan filin ne na ainihin binciken".  A cikin shekara ta 1908, gina layin dogo na Green Brae – Corte Madera cutoff ya haɗa da ma'aikata da ke yanke ƙarshen kudu maso gabashin tsibirin;  ta 1925, ta zama wani ɓangare na Keever estate.  An haifi Henry Richardson, memba na balaguron Amundsen, a Tsibirin Richardson.  A shekara ta 1941, taswirorin USGS sun nuna Tsibirin Richardson kamar yadda aka haɗa shi gaba ɗaya da ƙasar da ke kewaye;  yayin da har yanzu ana nuna alamar "Tsibirin Richardson" a wurin akan taswirar USGS ta shekara ta 1954, ta wannan lokacin ba tsibiri bane. 

A cikin shekara ta 1950, birnin Corte Madera ya shiga cikin "yaƙin haɗewa" tare da Larkspur maƙwabta; Tsibirin Richardson na ɗaya daga cikin yankuna da dama Corte Madera yayi ƙoƙarin haɗawa .  Daga cikin huɗu, birni ya yarda da ɗaya don a haɗa shi da doka-"ƙari Fifer-Moore", wanda ke Tsibirin Richardson.  A baya Larkspur ya yi ƙoƙarin toshe haɗin tsibirin ta hanyar "yanke shi" daga Corte Madera.  A shekara ta 2009, yankin da tsibirin Richardson ya mamaye a baya ya kasance wani ɓangare na Corte Madera, kuma da farko an keɓe shi don kasuwanci mai amfani, yankin ƙofa mai amfani, da wuraren jama'a da na jama'a.  An rarrabe shi a ƙarƙashin yankin nazarin shirin al'umma na "Fifer Avenue/Tamal Vista".

Manazarta 

Tsibiri
Tsibirin Finland