Wheal Anna Maria was originally a copper and later an arsenic mine. The biggest arsenic mine in the world.

The ruins you can see are from the arsenic calcining complex where the arsenic-ore was crushed then roasted (calcinated). The white powder of arsenic would coat the walls of the flues and be scraped off by men and children. They were protected from the extremely toxic poison only by cotton wool in their ears and noses and rags covering their mouths! They even had to scrape the white powder off their boots before going home.

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Routes here

Best Mountain Biking Routes to Wheal Anna Maria Calciner Complex

4.0

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riders

1. The Mineral Railway & Wheal Maria Trails ⁠— Tamar Valley

17.4km

01:36

360m

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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Moderate

4.7

(3)

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2. View from Blanchdown Wood loop from Gunnislake

8.59km

00:47

140m

Moderate mountain bike ride. Great for any fitness level. Advanced riding skills necessary.

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Moderate

4.0

(2)

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3. View from Blanchdown Wood – Morwell Rock loop from Gunnislake

32.4km

02:39

610m

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

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Moderate

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Elevation 80 m

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Location: Gulworthy, West Devon, Devon, South West England, England, United Kingdom

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River Tamar

Wheal Anna Maria Calciner Complex

1. The Mineral Railway & Wheal Maria Trails ⁠— Tamar Valley

2. View from Blanchdown Wood loop from Gunnislake

3. View from Blanchdown Wood – Morwell Rock loop from Gunnislake

Other Popular Places to Check Out

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