The site has been compared with Grimes Graves and Cissbury in the United Kingdom, and Krzemionki in Poland, which are also sources of flint stone. However, different hard rocks were used for the polished stone axes. There are several locations in Britain where fine-grained igneous or metamorphic rock was collected from screes or opencast mines, then roughed out locally before trading on to other parts of the country. Examples include the Langdale axe industry, Penmaenmawr and Tievebulliagh.