Pound (mass) for the weight of certain precious metals, especially in the trade; these are normally quoted just in ounces (e.g. "500 ounces") and, when the type of ounce is not explicitly stated, the troy system is assumed. Historically, the pound sterling was a Tower pound of silver. In 1528, the standard was changed to the Troy pound. The avoirdupois pound, also known as the wool pound, first came into general use c. 1300. It was initially equal to 6992 troy grains. The pound avoirdupois was divided into 16 ounces. During the reign of Queen Elizabeth, the avoirdupois pound was redefined as
Wilpena Pound side. There are many modern facilities there that makes it appealing for people who are not familiar with the semi-arid conditions. Tourists also go on scenic flights from an unsealed airstrip at Wilpena Pound resort and Rawnsley Park north east of Hawker. Rock climbing is a notable tourist attraction for Wilpena Pound, with the Moonarie being a hotspot for rock climbers. The Moonarie is a quartzite cliff of about 120m located on the upper rim of Wilpena Pound. Wilpena Eating House was built in 1862 to handle passing traders, until the structure was abandoned in the 1880s. The structure was