The acid soil obliterated any environmental evidence about this. Nearby outcrops of rock suitable for manufacture as axes would have contributed to the village's economy. Edge grinding stones, blanks and incomplete and finished axes found on the site indicate that the inhabitants were accomplished stoneworkers and traded their products with others. The pottery found on the site appears to have been made from gabbroic clay originating from nearly 20 miles (30 km) to the south in the present day parish of St Keverne. This further suggests a complex economic network in the area.
Source - Wiki - Accessed 15/09/14
I tried to get into Heartlands today, but the site was shut to visitors because there was a do going on (permits only). I am hoping to go back tomorrow. I haven't been up to Carn Brea for a while (went to restaurant for my birthday a few years ago - yummy food, but a bit pricey) and I forgot what a convoluted route it was. The road up was a bone-shaker and the walk was a bit ricketty under foot, but as I trod carefully, I didn't land on my face. It was very windy up here - but also very warm. It was nice to get some headspace amongst the butterflies and heather and the scenery was lovely :-)
Carn Brea Monument - Carn Brea, Cornwall
Fox Moth Caterpillar - Carn Brea, Cornwall
Carn Brea Castle Restaurant - Carn Brea, Cornwall
Flickr Link ------------------------------> https://www.flickr.com/photos/schnowbaby/sets/72157647192081299/