Sextant:

Terrain - 
coast
floor
lake
inaccessible
arctic
desert
forest
grassland
hills
jungle
mountains
plains
swamp
tundra

Roads - 
road
rail
maglev
highway
river

XU:

Terrain -
highlands (tundra hills)
rockies [Rocky Mountains](tundra mountains)
drifts (arctic hills)
glacier (arctic mountains)
taiga (tundra forest)
alpine [Alpine Timber](tundra forest hills)
sylvan [Sylvan Uplands](forest hills)
rainforest [Rainforest Plateau](jungle hills)
dunes (desert hills)
badlands (desert mountains)
bog (watery swamp)