Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Najd inzvimbo yakatwasuka iri pakati pe762 kusvika 1,525 m (2,500 kusvika ku5,003 ft) pakukwirira uye inotsvedza ichidzika kubva kumadokero kuenda kumabvazuva. Zvikamu zviri kumabvazuva (zvinozivikanwa zviri nani munhau seAl-Yamama) zvinoratidzirwa nenzvimbo dzeoasis dzine mabasa akawanda okurima nokutengeserana, nepo vamwe vose vave vachigara zvishoma nevaBedouin vanofamba-famba. Zvikamu zvikuru zvepamusoro zvinosanganisira makomo maviri eAja neSalma kuchamhembe pedyo neHa'il, nzvimbo yakakwirira yeJabal Shammar uye makomo eTuwaiq anomhanya nepakati payo kubva kuchamhembe kusvika kumaodzanyemba. Zvakare zvakakosha ndezvakasiyana-siyana zvakaoma rwizi-mibhedha (wadis) senge Wadi Hanifa padyo neRiyadh, Wadi Na'am kumaodzanyemba, Wadi Al-Rumah mudunhu reAl-Qassim kuchamhembe, uye Wadi ad-Dawasir kumucheto kwekumaodzanyemba kweNajd pamuganhu neNajran. Misha mizhinjisa yeNajdi nenzvimbo dzokugara zvinowanikwa pamwe chete newadis idzi, nemhaka yekugona kwewadis idzi kuchengetedza mvura inokosha yemvura mumamiriro okunze akaoma erenje, nepo vamwe vari pedyo nemahombekombe. Munhoroondo, Najd pachayo yakakamurwa kuva mapurovhinzi maduku akaumbwa nemapoka emataundi maduku, misha nemisha, imwe neimwe kazhinji yainge yakavakirwa pa"guta guru" rimwe. Zvikamu zviduku izvi zvichiri kuzivikanwa nevaNajdi nhasi, sezvo dunhu rimwe nerimwe richine musiyano waro wemutauro weNajdi netsika dzeNajdi. Anonyanya kuzivikanwa pakati pematunhu aya ndiAl-'Aridh, iyo inosanganisira Riyadh uye guta guru renhoroondo reSaudi reDiriyah; Al-Qassim, rine guta rayo muBuraidah; Sudair, yakavakirwa paAl Majma'ah; Al-Washm, yakavakirwa paShaqraa; uye Jebel Shammar, ine guta rayo guru, Ha'il. Pasi peSaudi Arabia yemazuva ano, zvisinei, Najd yakakamurwa kuita matunhu matatu ekutonga: Ha'il, Al-Qassim, uye Riyadh, inosanganisira nzvimbo yakabatanidzwa ye554,000 km2 (214,000 sq mi).  Mubvunzo: Ndeipi iri nzvimbo yakakwirira zvikurusa yeNajd mumamita?
5,003 (zviuru zvishanu nezvitatu)