Having had a slow day at work to think it over, I’ve come to the conclusion that we are looking at the problem of constructing a working topside for Black Mesa somewhat backwards. There is absolutely no way the individual maps of the facility will fit together on the small scale- they’re just too confused and non-Euclidean, and if we disallow that then we end up with too many variables as maps can go basically anywhere. So instead, let’s try to construct a large, general plan for the format of the base, and see where we can put all of the maps inside of that.
Now, there are three very large parts of the base that establish its outer limits: the cliff in bm_c2a5c, the large industrial complex in dm_gasworks, and the airstrip in bm_c2a5g/h.
Let’s talk about the cliff first.
According to .RK’s map it faces east
, and while it sure does look like there’s a lot of stuff behind
it, there seems to be precious little on the plain in front
- I only see three objects of any real note.
These antennas don’t really look like they’re attached to
anything, and they’re very
distant across this mostly-empty plain. As a result, I don’t think these are really associated with any major facility structures, nor are there any major facility structures between them and the cliff itself- and for that matter, we never see towers of this design anywhere in the Facility up close. They might be part of a perimeter system that wards off aircraft well before they can reach the Facility proper, or sensitive scientific instruments that need to be kept far away in order to work properly. Heck, they might not be a part of Black Mesa at all, just radio/cell towers for nearby towns. The one with the big satellite dish might
be dm_stack, since from inside that map you can’t see anything around it, but I don’t think so- a satellite transmitter
wouldn’t need to be isolated, and the BM Communications Division would I imagine be more centrally located.
There’s a facility just like this
visible in Forget About Freeman, but I very much doubt that the two are actually the same: the one in FAF didn’t have the river or the road that leads to the landing bay, and this one doesn’t have the bunker complex or radar domes that surround the one in FAF. This is probably
a service and logistics station where equipment and personnel to maintain the antennas are stored and routed, maybe also where aircraft to intercept intruders on the perimeter are deployed from.
looks like a pretty damn good candidate for a facility entrance-
possibly this road also serves the remote station up above, but given the distance I somehow doubt it. Not sure why the far side goes back underground when there’s just that big empty plain to cross, but maybe there’s another tunnel exiting from that little hill that we just can’t see…
Overall, I’m pretty comfortable saying that this cliff is the eastern border of the Black Mesa complex. That in and of itself gives us one bound on the facility’s structure, but there is another one that is not so obvious: while a protruding section of cliff face very effectively screens the north side of the map, we can clearly see a good long ways to the south and observe that there really isn’t a lot there. That means that while this area could indeed be on the southern end of the facility and not block anything, if the airstrip from c2a5h or the big jumble of industrial buildings from gasworks aren’t relatively far to the west, this cliff is probably on the north end of the base.
Oh, and rendered pictographically it looks something like this: