The map shows the exchange near the W cnr of Morilla St and Gem St (i.e. near no. 69) - but the co-ords put it at no. 33 (some 450 m away). Neither is correct: the exchange is at no. 21, which is at the N cnr of Morilla and Agate Sts (29°25'41.6"S 147°58'36.6"E)