The Wiese rises in the Black Forest in the Southern Black Forest Nature Park. Its source, the Wiesenquelle lies in the county of Breisgau-Hochschwarzwald immediately west of the residential area of Hebelhof in the municipality of Feldberg between the Feldberg ( sea level (NHN)), the highest mountain in the range, to the northwest and the Grafenmatt () to the south-southwest at about . The section of the B 317 from Feldberg Ort via Hebelhof to Todtnau runs past the source a few metres to the north.