Material Collection

So that I can layer in a material connection between the three boroughs referenced, the mapping of the bridge, and the cosmic distances, I am mixing a unique concrete compound for each art of Meters To The Center​. My approach is to find some rocks, dirt, or sand from each borough to fold into the concrete pour for that number. How to chose what to collect and where? I have found the balancing center point, or centroid, of Manhattan, Queens, and The Bronx–imagine balancing the shape of Queens on a pin–and then letting this center point guide me to the exact spot where I need to find the stuff for the concrete compound. It's a little like a map game that lets the shape of the boroughs tell me where to go. Ultimately, these spots were quotidian places within the fabric of their neighborhoods.