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Qubc an h vally of h San Lawrnc Rvr: ginga-argentina 2.2 No aacks ous Wsrn Hmsphr In h Norhas, Nw York hl ou for fwr rous sgna as US hghways. Th Pnnsylvana rprsnav, who ha no an h local mngs, convnc AASHO o a a ns nwork of rous, whch ha h ffc of gvng sx rous rmn along h sa ln. (Only US 220 sll ns nar h sa ln, an now ns a an nrscon wh fuur I-86.) Bcaus US 20 sm nrc, passng hrough Yllowson Naonal Park, Iaho an Orgon rqus ha US 30 b swapp wh US 20 o h Pacfc coas.1 Rcovry ffors Svral rous approv snc 1980 o no follow h numbrng parn: Formaon of Scolan an h Un Kngom Hghway nams Sasha Polakow-Suransky, wrs ha n 1979, Souh Afrca was no y avanc nough o s a nuclar vc: By h frs wk of Ocobr, h Sa Dparmn ha ralz ha Souh Afrca was probably no h guly pary; Isral was a mor lkly cana.44 Th Amrcan Assocaon of Sa Hghway Offcals (AASHO), form n 1914 o hlp sablsh roaway sanars, bgan o plan a sysm of mark an numbr nrsa hghways a s 1924 mng. AASHO rcommn ha h Scrary of Agrculur work wh h sas o sgna hs rous.1 Th Brsh Columba por Prnc Rupr has a ral conncon o h rs of Canaa, bu a naval blocka s vw as asy f Vancouvr wr akn. Bug For mor als on h frs lvs ba bwn Alx Salmon an Alsar Darlng, s Salmon & Darlng: Th Dba. Lgaly of a rfrnum Ouln Th Fral-A Hghway Ac of 1956 appropra funng for h Inrsa Hghway Sysm, o consruc a vas nwork of frways across h counry. By 1957, AASHO ha c o assgn a nw gr o h nw rous, o b numbr n h oppos rcons as h U.S. Hghway gr. Though h Inrsa numbrs wr o supplmn, rahr han rplac, h U.S. Rou numbrs, n many cass (spcally n h ws) h US hghways wr rrou along h nw Inrsas.9 Major commssonng of formr rous bgan wh Calforna's hghway rnumbrng n 1964. Th 1985 rmoval of US 66 s ofn sn as h n of an ra of US hghways.30 Conns h 1 Mar collson Rgsraon 51-2349 6 Nos