The slope rises very gently (with a 15 to 20 percent grade), especially in the southern part, and offers good conditions for agriculture.
Duke Henri of Rohan praised the diverse landscape exuberantly as "the most beautiful mountain in the world".
The Nolla brook, which forms the southern border of the Heinzenberg area, dug itself a deep ravine within a few decades at the end of the 18th century and was feared because it often caused floods in Thusis.
The Heinzenberg Ridge begins in the south with the 1848 m high Glas Pass, a historically significant bridle path connecting Thusis to the Safien valley.
Today only a handful of elderly people in the more remote parts of Heinzenberg (in particular Präz) speak Romansh.
From time immemorial,[clarification needed] the Posterior Rhine valley was a transit area on the route from Chur to the Alpine passes of the Splügen and San Bernardino.