Armatures can be as small as a short walkway or as large as a city, but regardless of size, they are the point of transition from Bridgespace into an iteration. On the bridge side, the Embarkation Point (EP for short) looks similar to a metal door or a crawlspace. Sometimes it’s a ladder leading into darkness but always end-capped by a metal door.
On the iteration side, the EP snaps to a local fixture such as a tree stump, closet, rock, or sewer access point.
The connection will flip on a hinge and allow for a transition from Bridgespace into an iteration. This is an automatic function, at present the EP can’t be selected at will.