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Map:  LPI Katoomba 89301S

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The Mt Rennie Tunnel runs under Narrow Neck Plateau, connecting the Megalong Valley with the Jamison Valley.

It was built so oil shale from the Glen Shale Mine could be transported to the railway using the existing cable haulage facility, the Katoomba Incline, in the JamisonValley.

The tunnel is about 3 metres wide and about 1.2 metres high for most of its length.  It was just large enough for the double track tramway.

It looks like the tunnel was dug from both ends.  The Megalong Valley side is slightly lower.  There is a larger space in the tunnel where the 2 levels meet.

Water, knee deep, has pooled in 2 sections of the tunnel.  It is a dark orange colour, stained by the ochre in the rocks  

When mining was finished the Mt Rennie Tunnel portals were blocked.  Over time the portals have opened enough to allow a person to squeeze through.

The Mt Rennie Tunnel is home to a small colony of bats.

Satellite Map showing the approximate location of the Mt Rennie Tunnel


Recent Changes
Item Date Type
Banks Wall 07-06-2017 Add
Pulpit Hill Creek 04-06-2017 Add
Lions Head Pass 22-05-2017 Mod
Lions Head 21-05-2017 Mod
The Goat Track 20-05-2017 Mod
Wombat Parade 15-05-2017 Mod
Dingo Gap 13-05-2017 Mod
Green Cape 12-05-2017 Add
Toothed Helmet Orchid 09-05-2017 Add
Valley Of The Dinosaurs 04-05-2017 Add
Splendour Rock 27-04-2017 Mod
The Pondage Canyon 16-04-2017 Mod
Donkey Mountain 16-04-2017 Mod
Coachwood Glen 15-04-2017 Add
Genowlan Pinch 20-03-2017 Add
Valley Of The Kings 14-03-2017 Add
City In The Sky 13-03-2017 Add
Torbane Balcony 02-01-2017 Add
The Great Wall 29-12-2016 Add
The Towers 11-12-2016 Add
Flat Top 14-11-2016 Add
Zorro Canyon 11-11-2016 Mod
Dalpura Canyon 10-11-2016 Mod
Waratah 10-11-2016 Mod
Twins Canyon 11-10-2016 Add
Tall Leek Orchid 06-10-2016 Add
Vertigo Slot 22-09-2016 Add
Grand Canyon 16-08-2016 Add


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