Nanette, yes a little bit like the Waikerie ones, although these are as usual on a rail line. Geographically speaking these are almost due east from Waikerie.
I'll be travelling through Waikerie on the SA October long weekend this year to see some friends, I'll have another look at them.
Another reminder of Waikerie is that it was hovering in the low 40's on New Years day this year, when I took that sheet. Hot under the cloth would be an understatement, but there was a boiling hot gentle zephyr blowing to keep sweat off, you know exactly what I mean.