Stengerts, Mountain summit in Spessart, Germany.

Stengerts is a 347-metre mountain in the Vorspessart within Aschaffenburg, its summit on the Schweinheim district boundary with Gailbach. The wooded peak is topped by the 22-metre Dr.-Hönlein-Turm and the Stengerts transmitter. On its slope lies the disused Höllein quarry, a quartz diorite working where the mineral spessartine was found in 1832.

The Dr.-Hönlein-Turm on the summit was opened on 23 May 1937 by the Spessartbund as the Hindenburgturm, named after Paul von Hindenburg, and was given to the municipality of Schweinheim, passing to Aschaffenburg with its incorporation in 1939. After the Second World War it was renamed after Hans Hönlein, deputy chairman of the Spessartbund. In the Höllein quarry below the summit, the mineral spessartine was found in 1832.

The 22-metre Dr.-Hönlein-Turm on the summit, opened on 23 May 1937 by the Spessartbund with 103 steps, was first named Hindenburgturm and renamed after the deputy chairman Hans Hönlein after the Second World War. It passed as a gift to Schweinheim and, with the 1939 incorporation, to Aschaffenburg. Beeches and pines now reach 30 to 35 metres, partly taller than the tower, so sightlines toward Schloss Johannisburg are kept open.

Marked trails lead to the summit and surrounding areas from multiple starting points. The terrain is accessible for hiking and cycling depending on which route you choose.

The Höllein quarry on the Stengerts is an abandoned quartz diorite pit and geotope where the mineral spessartine was found in 1832. The 22-metre Dr.-Hönlein Tower on the summit, opened on 23 May 1937 with 103 steps, was renamed after 1945; its beeches and pines now reach 30 to 35 metres, partly taller than the tower.