NATURAL ENVIRONMENTAL FEATURES
1. Floodplains, streams, greenbelts.
2. Aquifer recharge areas.
3. Soils
4. Slopes.
5. Vegetation (tree cover, prairie, desert, wetland)

MAN-MADE ENVIRONMENTAL FEATURES
1. Water system.
2. Sanitary sewer system.
3. Storm water system.
4. Transportation system.
5. Commercial land use.
6. Industrial land use.
7. Residential land use.
8. Vacant developable land.
9. Agricultural land.
10. Forest.
11. Parks and recreation areas.
12. Historic sites.
13. Schools, and school district boundaries.
14. Landfills.
15. Public buildings and land.
16. Government restricted areas.