Embrach

Gules, two keys argent in saltire.
Until the middle of the 16th century seals with the image of St. Peter were used. Today's St. Peter's keys are a reference to this tradition. The change was made to the secular symbol due to the Reformation .

Embrach is situated in the "Embrachertal" , 6 kilometers northeast of the international airport of Zurich, in a wide U-shaped side valley of the river Töss. A plain of 500 ha size, 5 km length and up to 1.5 km width forms the ground of the valley. The plain is bounded by the slopes of the hill Blauen to the east, by the hill Dättenberg to the west, by the Ghei and the Egg to the south, and by the Tössschlucht to the north. The stream Wildbach drains the "Embrachertal" northwards into the river Töss at Rorbas. The landscape was formed by the Linth glacier during the ice-age.

Wikipedia