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« on: October 12, 2009, 03:29:19 pm »
I've built a trade depot deep within the bowels of my fortress, with a three-tile-wide corridor running gradually upward towards the surface. The depot is 3 levels under Z-0. I've build ramps upwards to the surface opening and when I hit Shift-D I see a single green line all the way along the corridor until I get to my exit ramp.
On the surface, the ramp reads as inaccessible (it's in red when I press Shift-D). Access to the entrance ramp from the surface is not a problem.
If I move down one level, I can see a green T-line running from the ramp (on that level) all the way to my depot. The other ramps don't impede access at all, only the one on the surface.
According to the wiki,
"Shrubs do not obstruct wagons, and neither do ramps, bridges, roads, or floor tiles. (However, ramps covered by a hatch do obstruct.)" My ramp is not covered by a hatch.
Hope I've explained my problem clearly enough.
What am I doing wrong?