Tunnel from near Camden or Picton to the junction of the Wollondilly &
Coxs Rivers in the Burragorang Valley, thence up the Coxs River valley to Hartley Up the
Grose River gorge, then tunnel under Darling Causeway to Hartley Vale. A lot of time,
expense & effort was expended on surveying this route.
From Richmond via Bells ridge to Lithgow.
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