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Mangatangi River Rock Limited

Mangatangi River Rock Limited (MRRL) (100% owned by Hugh Green Group) produces washed, uncrushed river stones from coarse, greywacke-derived river gravel in the Mangatangi Valley using the most sophisticated fixed quarry plant in New Zealand. The quarry started producing aggregates in June 2006.

MRRL is situated in Franklin District between inland Mangatangi and Kaiaua. The quarry is on the Firth of Thames and is approximately 10kms inland from Kaiaua at 900 Kaiaua Road.

The quarry produces a wide range of graded aggregates that are suitable for many applications including river & stream restoration, decorative walls, parks & playgrounds, rip rap, decorative concrete pathways and driveways and gardens.
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Phone: 09 232 7692
Fax:   09 232 7694
Email: mrrl@farmside.co.nz
Physical address:
900 Kaiaua Road, Mangatangi
Postal address:
PO Box 12-443, Penrose, Auckland 1642
The opening hours for the Quarry are:
Monday – Friday
7.30am – 5.00pm
8.00am – 12.00pm (by arrangement)