two city squares on the map in every direction except
diagonally. If the new city grows large enough, its population
can bring all of this area into development. When planning a new
city, consider this radius and the long-term benefits of any
potential site. To grow, the city must encompass sufficient
food-growing areas. Any city that can grow has value, but your
most important cities are those that also have resources
available. These cities can quickly build and support military
units and Wonders. Hills and Forests are important sources of
resources, as are squares containing special resources symbols
for game, horses, coal, and oil. The importance of trade in
generating taxes and technology makes River squares especially
goof sites for cities when just beginning. Without Rivers, you
must quickly build roads in Plains or Grasslands to generate
trade.

LANDSCAPING: When surveying sites for a new city, keep in mind
the potential for some squares to be improved. Hills and
Mountains can be mined and then produce increased resources.
Plains, Rivers, and Grasslands can be irrigated and then produce
more food. Swamps and Jungles can be cleared into Grasslands or
converted to Forests. Forests may be cleared into Plains. Plains
and Grasslands may be turned into Forests if you need resources.
An area of Jungles and Swamps looks barren at first, but has the
potential to be a very rich city site. Plains, Grasslands, and
Deserts produce trade once penetrated by Roads, and all land
squares improve in production when Railroads come through.

PROXIMITY OF CITIES: Another consideration when planning new
cities is the current or potential location of other cities.
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