This is a half-map. A half-map can only be use with another half-map. Both half-maps must be connected together at the designated connector zones, as close the center of the connector zones as possible, to be used. If the zones are not of the same side of the hex (corner or side of hex), then place them together as close a possible.
Slippery Ice
Normal Snow
Icy Road: You still get road bonus if road is covered in ice.