Re: Waterfall railway steam engine water supply.
For photos just google image search: Lake Toolooma.
The boiler is still down next to the dam. Around here: -34.135576, 150.987858. You may be able to get to it from the end of Bundarra St but I have never been that way. To get to it from the end of Warabin St:
Park at the end of Warabin St.
Walk through the fire trail gate.
About 100m in turn left onto the Bullawaring Track.
Follow Bullawaring Track down Waterfall Gully until you come out onto a fire trail.
Turn left (south). Walk 1-2km to the dam.
Boiler is just past the dam down the hill from the fire trail.
There are some pipes and other bits and pieces laying around so take the time to have a good look around.
I was lucky enough to visit this spot one time with a boilermaker. It was fascinating to hear his insight into how old boilers like this one were made.