REQUIRES:
<l:4,108>Mezotech<e>
Built adjacent to irrigated land, such as a River, Farm or Water
Time: 2
<l:6,61>PW<e> costs:
<l:5,4>Grassland<e>, <l:5,1>Plains<e>, <l:5,2>Tundra<e>: 600
<l:5,3>Glacier<e> and <l:5,5>Desert<e>: 800
<l:5,8>Mountains<e> and <l:5,9>Hills<e>: 1,200