A former source of tin, this site has long been used as a mine. The slag heap, which is said to be 70 to 121 meters high, is a magnificent vantage point. An orientation table is also at the top to enhance your experience.

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Christophe

November 18, 2025

Hiking

While the ascent of the slag heap is flat and gently uphill in its first part, it is followed by a long, steeper section of walking before reaching the summit. It is clearly stated that descending via any route other than the designated access point is strongly discouraged due to the risk of rockfalls.

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Best routes to The Slag Heap

4.5

(15)

151

hikers

1. The mine of Abaretz — loop from Abbaretz

7.26km

01:54

50m

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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Easy

4.8

(6)

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2. The Slag Heap – Abbaretz mine spoil tip loop from Châteaubriant-Ancenis

3.30km

00:53

40m

Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

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Easy

5.0

(1)

hikers

3. Mine Lake – Abbaretz mine spoil tip loop from Châteaubriant-Ancenis

9.21km

02:26

80m

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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Moderate

Details

Informations

Elevation 90 m

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Location: Abbaretz, Châteaubriant-Ancenis, Pays de la Loire, France

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The Slag Heap

1. The mine of Abaretz — loop from Abbaretz

2. The Slag Heap – Abbaretz mine spoil tip loop from Châteaubriant-Ancenis

3. Mine Lake – Abbaretz mine spoil tip loop from Châteaubriant-Ancenis

Other Popular Places to Check Out

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