Water Precious Resource Map 1993

The "Water: Precious Resource" map contains a wealth of information on surface water, ground water, water pollution, and water usage. This map was published in National Geographic in November 1993 in a special issue devoted to water. A map of the United States also accompanied it.

The 1993 "Water Precious Resource" map features:
• A map and information on the major rivers in North America
• A map showing the drainage and flow of waters in North America
• A map of pre-dominant land use, land cover, and information on the hazards of irrigation
• A map of regional aquifer systems
• An illustration of water pollution showing a cross-section of a region, pollution sources, and how the pollutants get into the water supply
• Facts about water use which explains how water is used in agriculture, to make electricity, in industry, and more

Coverage Area: United States, Alaska