The Minneapolis-St.Paul metro area is full of portals! As are many of the smaller communities throughout the state. We are working on a map to help you navigate to the most portal dense areas, which will be available closer to the Anomaly.
You may have seen some of our spectacular banners on scanners. Many are easily done by just walking in a single area, others get you out and exploring. We will be posting a map with some of our personal favorite mission banners closer to the Anomaly. Until then, you can paruse some of the local banners on IngressMosaik.