I thought I would do a multi to go along with Choo Chooing Around Lumsden Adventure Lab and the associated Bonus as people like to do different things.
A nice easy one for you. Enjoy walking around all the railway history and rusty bits. But at GZ you should find a board entitled Lumsden Railway Precinct Project. This will give you a bit of info on setting up this area and the people who gave their support to make it the wonderful place that it is. Thanks to all of those.
From the board you should be able to work out the final co-ordinates.
S45 44.XXX E168 26.YYY
Where: -
XXX = The number of People & Businesses who gave support - 1
YYY = Date the Lumsden Heritatge Trust was formed - 1902