Monacnapa in Cork in County Cork, Munster, Ireland — Irish South-West ((Éire) North Atlantic Ocean)

Where Two Rivers Cross

Photographed by Ian Lefkowitz, May 15, 2026

1. Where Two Rivers Cross Marker

Inscription. Prior to 1870, the River Blarney joined the River Martin near the Rock Close, but the course of the river was altered and the gradient was changed to increase the outflow of water when Inchancumain Bog was drained. The River Blarney was re-directed under the River Martin, which was channelled overhead via a short aqueduct.

At the point where the River Blarney emerges can be seen the remains of an old flax mill. It is a rare occurrence really in that one does not often find a place where one river passes under another. As a matter of interest, the River Martin was known as the River Aumartin in the 1600’s while the River Blarney was known as the River Whey.

Topics. This historical marker is listed in these topic lists: Natural Features • Waterways & Vessels. A significant historical year for this entry is 1870.

Location. 51° 55.848′ N, 8° 34.207′ W. Marker is in Cork, Munster, in County Cork. It is in Monacnapa. It is on Blarney Castle Estate. The marker is located on the grounds of Blarney Castle & Gardens. Touch for map. Marker is at or near this postal address: Blarney Castle Estate, Cork, Munster, Ireland. Touch for directions.

Regionally,

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it is on the Atlantic Ocean,

in the North Atlantic Region,

on the Atlantic Arc,

in Europe,

on the Island of Ireland,

on the Celtic Fringe,

in the European Union,

in Atlantic Europe,

on one of the British Isles,

in the Western World,

and in the Anglosphere.

Other nearby markers. At least 8 other markers are within walking distance of this marker: Castle First Vista (within shouting distance of this marker); Welcome to Blarney Castle & Gardens (about 120 meters away, measured in a direct line); The North Wall (about 150 meters away); Kennel, Sentry & Dungeon (about 150 meters away); An Doinsiún / The Dungeon (about 150 meters away); The Lookout Tower (about 150 meters away); a different marker also named Welcome to Blarney Castle & Gardens (about 180 meters away); Badgers Cave (about 180 meters away). Touch for a list and map of all markers in Cork.

Photographed by Ian Lefkowitz, May 15, 2026

2. Where Two Rivers Cross Marker

The marker is located next to the bridge leading to Blarney Castle.

The River Martin image. Click for full size.

Photographed by Ian Lefkowitz, May 15, 2026

3. The River Martin

Credits. This page was last revised on June 6, 2026. It was originally submitted on June 6, 2026, by Ian Lefkowitz of New York, New York. This page has been viewed 12 times since then. Photos: 1, 2, 3. submitted on June 6, 2026, by Ian Lefkowitz of New York, New York. • Andrew Ruppenstein was the editor who published this page.