Glaciers can support a <l:6,104>city<e>, though it's hard to find a more forbidding terrain to <l:6,48>settle<e> on the whole planet. The rugged, icy terrain makes it difficult to traverse and makes <l:8,0>normal farming<e>, <l:8,19>roads,<e> and <l:8,3>mines<e> impossible to construct. Only <l:8,2>Hydroponic Farms<e> and <l:8,21>Maglevs<e> are sufficiently advanced to be built here, albeit at a great cost. <l:6,25>Rivers<e> greatly enhance this terrain.