"At several such places we landed, but always found the ascent to the interior so covered with large loose rocks that it would have been impossible to have disembarked stores or stock on any"

This quote by George Grey is describing the problem of disembarking stores or stock on the land he and his crew come across throughout their travels. He is describing the surface as having large loose rocks that made it difficult to disembark any materials. This suggests that the land was not appropriate for any sort of settlement or advancement, as the rocks would have made it difficult to move around and transport products. It also suggests that the land was not congenial to any kind of life, as the rocks would have made it tough to find food or shelter. This quote highlights the difficulty of exploring and settling in unknown lands, and the importance of finding suitable land for development.