[2] The Schefflenz rises immediately north of Großeicholzheim (municipality of Seckach) at about 328 m ü. NHN and then flows in a southerly direction.
In this area, the Schefflenz flows through an idyllic meadow valley, the slopes of which are covered with forests on both sides.
Although it is only a few kilometers wide along its course, the stream is one of the four major tributaries of the Jagst on its lower reaches, and the fourth largest overall, after the Seckach and the Erlenbach and before the Kessach.
At just under 392 DE-NHN, the above-ground catchment area reaches its greatest height on the northern watershed in the Spitzenwald, north of Großeicholzheim.
To protect against a 100-year flood event, three retention basins were built that are effective in the area: The Schefflenz Valley is of comparatively little importance for transport.