[Rules] LOS aid

[plloyd1010]

Any intersection with a hex containing town/woods/slope is blocked, basically
Remember, it's about the hexes---not the artwork....

Largely correct. If the LOS goes through something like a woods or town hex, LOS is blocked. The criteria for determining a non-clear hex is if the limiting terrain covers 25% or more of the hex, rule 8.24. Slopes get weird. Crossing elevation lines (hence the artwork) is the usual determinant for LOS. Refer to rule 8.4 and pages 22-23 in the rulebook to understand (or be confused by) the mechanics.