See the neigborhoods page for a map showing the delegate area boundaries. These are loosely determined by the NET sector walkabouts. We need a revised and better rendition of this map.
Maryellen Read and John Miller talked about being able to enter a street address on this page to determine which sector (walkabout) a particular house (residence) belongs to.
Collins View map in PDF from Portland Online. THIS LINK should download the PDF into a PDF viewer in, or perhaps outside, your browser.
Google Maps, although the NA boundary is not super-imposed (yet): Google map link.