What berries grow along roads, with berry the size of chokecherry, coloring is also the same as choke cherry. The seed is smaller, and not round like choke cherry. The leaves remind me of Apple or choke cherry. The berries grow in small cluster, with small stems unlike a choke cherries, this time of year
Pope County Minnesota
It is hard to tell without a picture. It might be a pincherry, which has obling seeds. See http://www.extension.umn.edu/garden/yard-garden/fruit/wild-and-edible-fruits-of-minnesota/ and http://www.extension.umn.edu/garden/yard-garden/fruit/docs/MN-Wild-Edible-Fruit.pdf for pictures that may help you identify the berries.
A colleague pointed out that it might be buckthorn, an invasive species. See http://3.bp.blogspot.com/-GGG-vrCsl18/UIbOKeOrUoI/AAAAAAAABbM/78dnUNWrEZE/s1600/rhca3_005_lhp.jpg for a picture of the seeds and http://dnr.state.mn.us/invasives/terrestrialplants/woody/buckthorn/index.html for mor e about the plant.