Protesters assembled in Cinderford at the weekend to make their views on the town's imminent development clear.
Green groups have long been opposed to the regeneration of the town's largely derelict Northern Quarter.
Fears over the impact on wildlife, as well as the loss of so-called 'Forest Waste' - the term given to land in the statutory Forest that is not legally enclosed - prompted a peaceful march from the town centre to the gates of the Northern United site.
The area will be transformed into a new employment, housing and education hub in a multi-million pound scheme, pending planning permission and the granting on licences from Natural England.
The walk was organised in part by members of the Protect the Wilderness Centre group.
On their Facebook page, they said: "The so-called authorities insult local traditions, Forest heritage and the rights of all peoples of this Forest.
"All Free People have the right to roam the land, the right to access culturally important objects and places and the right to define and determine appropriate development of their land. A Trust of Unified Foresters is forming to defend the Forest from all those who seek to defile and destroy life in the area."