Frank Elgee, curator of the Dorman Museum, Middlesbrough, in 1927, uncovered parts of an earthenware cremation urn, together with burnt bone and flint.

A co-founder of the organisation was Craig Hornby, a local film-maker whose best-known work, A Century in Stone, tells the story of iron-stone mining in Eston Hills.

The property acquired includes land around the area of the monument, between the privately owned Bauer Teesside site and Eston Moor, which is already in public hands.

Erected in 1956.At only 242 metres (794 ft) above sea level at its highest point, Eston Nab is classed as lowland heath.

Bird species found at the heath includes, lapwing, curlew, green woodpecker and linnet, whilst there are various butterflies and dragonflies.

Eston Nab commands an excellent view of the nearby Roseberry Topping, which stands higher at 320 metres (1,050 ft).

The advent of these communication towers was controversial when they were first installed, because the monument at Eston Nab, and the skyline that it was part of, had become such a familiar symbol of the area.