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Germany

Baden-Württemberg

Landkreis Reutlingen

Dettingen an der Erms

Hell Holes Dettingen – Yellow Rock Viewpoint loop from Dettingen Erms Freibad

Routes

Hiking trails & Routes

Germany

Baden-Württemberg

Landkreis Reutlingen

Dettingen an der Erms

Hell Holes Dettingen – Yellow Rock Viewpoint loop from Dettingen Erms Freibad

Hard

4.8

(38)

145

hikers

Hell Holes Dettingen – Yellow Rock Viewpoint loop from Dettingen Erms Freibad

04:48

15.3km

560m

Hiking

Hard hike. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required. The starting point of the route is accessible with public transport.

Last updated: June 23, 2026

Tips

Includes a segment that may be dangerous

A part of this route comprises technical, difficult, or hazardous terrain. Specialist equipment and prior experience may be required.

After 4.31 km for 93 m

Waypoints

Start point

Train Station

Get Directions

962 m

View of Calverbühl

Highlight • Natural Monument

The Calverbühl (also Calver Bühl, formerly Karpfenbühl) is a striking 509 m above sea level elevation south of Dettingen an der Erms in the district of Reutlingen. On the summit …

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1.27 km

Calverbühl Hill with the Linden Tree

Highlight • Viewpoint

Coming from the Hauserbrunnen fountain, the first thing you see is a mighty green rock topped with a particularly beautiful tree. Climbing up, you'll find a great bench around the …

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3.11 km

Hell Holes Dettingen

Highlight • Gorge

At the Höllenlöcher, you can experience the erosion of the Swabian Jura up close. The Albtrauf is constantly moving further south, partly slowly and partly suddenly in massive rockfalls. Here …

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4.33 km

Yellow Rock Viewpoint

Highlight • Viewpoint

Great view towards Bad Urach. A short ridge walk is required to reach the rock.

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7.01 km

St. Johann Foal Farm

Highlight • Structure

The Gestüthof St. Johann and the associated Fohlenhof is specialized in foal breeding as part of the main and state stud Marbach.

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7.56 km

Tree-lined avenue at the stud farm in the Swabian Alb Geopark

Highlight • Trail

nice stretch of path with trees

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9.42 km

Hohe Warte Observation Tower and War Memorial

Highlight • Monument

Directly on the Albsteig lies the 820-meter-high mountain "Hohe Warte". On the highest point of the Hohe Warte, there is a viewing tower with a height of 23 meters. The …

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10.7 km

Längental Sinkhole Valley

Highlight (Segment) • Natural Monument

The Längenental is by no means a valley, but a 300 m wide and 1.5 km long valley interspersed with sinkholes and without a surface on the surface.

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15.3 km

End point

Train Station

Way Types & Surfaces

Way Types

7.79 km

5.75 km

984 m

463 m

224 m

< 100 m

Surfaces

6.85 km

4.94 km

2.32 km

1.08 km

< 100 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (810 m)

Lowest point (410 m)

Weather

Wednesday 24 June

33°C

17°C

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Comments

May 31, 2025,31.05.2025 St. Johann - Höllenlöcher

Round trip across the Swabian Alb from the stud farm to the Höllenlöcher with a detour to the Hohe Warte observation tower and other viewing rocks.

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September 11, 2022,Gestütshof St. Johann - Gelber Fels - Höllenlöcher und zurück

2.8 km/h on average? Not really, just don't press pause while staying at the most beautiful spots 🙃. The stud farm with farm shop has great cakes and other delicious things, the hell holes and other vantage points invite you to take photos.
Nice tour with a view of my previous tours in the distance and with hopefully not the …

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November 14, 2021,Gestütshof St Johann, Hohe Warte, Fohlenhof, Höllenlöcher

A nice round even in cloudy November weather.
First to the observation tower on the Hohe Warte. A worthwhile detour even when visibility is poor. Then to the foal farm. Today you could watch a whole herd of foals romping around. Then along the Alb eaves, past the Yellow Rock, to the Hellholes.

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Hell Holes Dettingen – Yellow Rock Viewpoint loop from Dettingen Erms Freibad

View of Calverbühl

Calverbühl Hill with the Linden Tree

Hell Holes Dettingen

Yellow Rock Viewpoint

St. Johann Foal Farm

Tree-lined avenue at the stud farm in the Swabian Alb Geopark

Hohe Warte Observation Tower and War Memorial

Längental Sinkhole Valley

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