Welcome to the UPL user manual. This manual will enable you to learn how to use UPL. It will guide you through several simple examples, and show you how to utilise the program options.

UPL was written by David Drew. It is a program designed to determine the ultimate pit limit for ore bodies. If you wish to know more about what the ultimate pit limit is, please see the main UPL homepage at http://www.hydrowash.com.au/david/upl/ where you can download a copy of David Drew's original thesis, which describes the ultimate pit limit theories, and the design and basis of UPL.

Please note: Hydrowash is in no way affiliated with UPL. The author, David Drew, is a director of Hydrowash and uses the web space he has on the Hydrowash web-site to locate the UPL page, and provide an email address. Please do not contact Hydrowash with any questions you may have about UPL. Please see the contact page for details on how to contact the author

System Requirements

In order to use UPL, your computer should have at least the following system requirements. Note; These are only the systems that UPL has been tested on. Your computer, though it has lesser capabilities, may also work.

PC Compatible;

Windows 95

Pentium 133

32 Megabytes of RAM

Excel 97

Macintosh

System 9

G3 - 233

32 Megabytes of RAM

Excel 98