We have those giant guns in Twilight Gap (Destiny)

by Chewbaccawakka , The Great Green Pacific Northwest!, Wednesday, May 13, 2015, 23:32 (3736 days ago) @ Ragashingo

Twilight Gap was meant to be an expansion of The City beyond the valley its in. The Fallen's big coordinated attack ended those plans and what was left of The City's expansion was converted to fortifications. That's in the Grimoire somewhere. I suppose the guns could be pre-collapse, but then they would be "centuries" old...

Do you remember where this is in the Grimoire? I couldn't find it in the Twilight Gap entry.