The development of the information system from which Enviro-Info 2001 has been derived would have been impossible without the co-operation and contribution of a number of organisations. Applicable and up to-date information is often difficult and expensive to obtain for a variety of reasons, and the Department of Environmental Affairs and Tourism, as well as the editors, wish to express sincere gratitude to all contributors for their input.

In particular we wish to thank the following organisations for the information contributing in the development of the digital ENPAT, as represented by various maps displayed in this publication:

Water Research Commission
Pretoria

Chief Director: Geological Survey
Pretoria

Chief Director: Surveys and Land Information
Mowbray

Department of Water Affairs and Forestry
Pretoria

Department of Agriculture Engineering
University of Natal
Pietermaritzburg

Demographic Information Bureau
Pretoria

Institute for Soil, Climate and Water
Agricultural Research Council
Pretoria

Central Statistical Service
Pretoria

University of Pretoria
Department of Architecture
Department of Geology
Department of Soil Science
Department of Microbiology
Department of Botany
Department of Ecology
Department of Zoology