The Government figure is apparently based on the remains gathered during a partial excavation in the 1970's.

Five decades later, the University of Texas at Austin funded a partial excavation of Bolton's site, a part of the Keeran ranch.

In 1876 a local schoolmaster called Williams made a partial excavation of the castle site, finding glazed pottery, a spur and fragments of deer horns.

This location was confirmed by a partial excavation in 1930.

Broomfield is the site of an important Anglo-Saxon burial which was discovered by workmen in 1888 after which there was a partial excavation.

The final report is yet to be published, but some interesting results follow from the partial excavation of Q Hole 13 where 'associations with Beaker pottery' where noted.

Between 1962 and 1965 the French archaeologist Stresser-Péan surveyed the area and conducted partial excavations.

A partial excavation of the area in 1937 found 31 well-preserved houses from the settlement.

It might have been known to both Belzoni and John Gardner Wilkinson but the only documented clearance is a partial excavation by Ryan in 1990.

According to the scientific exploration and partial excavation, much metal is present in the underground palace and it also features a very good drainage system.