^ despite being an interesting map, please be advised that most of it lacks any sort of actual source. I own that book and there is no index of some sort with actual data showing how that layout was mapped. At least the one covering the USA.

Also it needs to be said that many of those “families” are not active per-se but more like some geographical connections to Italian areas run by certain crime families and alleged/general links to individuals living on American soil, such as the Springfield MA reference. Most Genovese associates living in Western MA are descendants of Avellinese and Nolani immigrants or are immigrants themselves (like Emilio Fusco), but, other than that, actual links to overseas organizations have yet to be proven.

Same for the Terrasini connection in Detroit. The D’Anna brothers (Domenico and Girolamo) are related to mafiosi from that area but that’s not enough to imply that the D’Annas out of Sicily run any activity in metro Detroit.

Take it with a grain of salt or, at best, as a way to explore some blood-and-immigration-lines.