The Unnamed Eyot is an island in the River Thames

River Thames

The River Thames flows through southern England. It is the longest river entirely in England and the second longest in the United Kingdom. While it is best known because its lower reaches flow through central London, the river flows alongside several other towns and cities, including Oxford,...

 in Berkshire

Berkshire

Berkshire is a historic county in the South of England. It is also often referred to as the Royal County of Berkshire because of the presence of the royal residence of Windsor Castle in the county; this usage, which dates to the 19th century at least, was recognised by the Queen in 1957, and...

, England

England

England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

, near the villages of Shiplake

Shiplake

Shiplake is a village and civil parish about south of Henley-on-Thames in Oxfordshire, England on the River Thames.-History:The Church of England parish church of St. Peter and St. Paul dates from at least the 13th century, but in 1869 the Gothic Revival architect G.E. Street rebuilt the chancel,...

, Oxfordshire

Oxfordshire

Oxfordshire is a county in the South East region of England, bordering on Warwickshire and Northamptonshire , Buckinghamshire , Berkshire , Wiltshire and Gloucestershire ....

 and Wargrave

Wargrave

Wargrave is a large village and civil parish in the English county of Berkshire, which encloses the confluence of the River Loddon and the River Thames. It is in the Borough of Wokingham...

, Berkshire. It is on the reach above Marsh Lock

Marsh Lock

Marsh Lock is a lock and weir situated on the River Thames in England near Henley-on-Thames, Oxfordshire. The lock is close to the Berkshire bank, but accessed from the Oxfordshire side via two long walkways, the downstream one being near Mill Meadows...

.

The island is wooded and about 200m long by 50m at its widest point. It is closer to the Wargrave bank, and accessible by a footbridge from the property on that side. The Ordnance Survey

Ordnance Survey

Ordnance Survey , an executive agency and non-ministerial government department of the Government of the United Kingdom, is the national mapping agency for Great Britain, producing maps of Great Britain , and one of the world's largest producers of maps.The name reflects its creation together with...

shows no name for the island.