Eaglestone Rock and Lake Brown
Lake Brown is a naturally occurring salt lake that is used for water skiing when full. It is an intermittent lake, but even when there is no water, the sparkling white crystal salt flats still provide a magnificent outlook.
It has sands containing alunite, a sulfate mineral which is very rare in Australia. It is often mined for the purposes of producing aluminium and potash. Alunite can be mistaken for calcite (limestone) or dolomite rocks, but an acid test will give a quick answer as alunite won’t bubble unlike limestone. This mineral dates back to the Cenozoic era, anywhere from 18.9 to 1.17 Ma (million years ago).
Eaglestone Rock is on the lake’s north shore, and is a popular spot for rock climbing. Rock climbing at Eaglestone Rock consists of mostly short climbs that are already bolted with chemically fixed bolts, and abseil stations are positioned at the top of the major boulders.
This site is part of the Wheatbelt Science Trail and GeoTrail, you can find more information or other sites of interest across the region on the map.
The Cache
The cache is a camo micro hidden under a rock