Woods = The forest of Kelan Village, There is a collection spot for Wood and Lauan. also you can kill tree devil monsters to get all kinds of wood.

Ores = As everyone knows it, The cave of kelan Village. You can kill stone monsters to get almost all the kinds of ores. Some kind of ores cant be obtained there. for example: Aluminum Ore can be obtained from the KaMa Cave's mine.

Clays & Stones(like Mica Rock, Shale, Common Stone etc.) = The 2nd and 3rd floor of Kelan Cave. There is clay collection spot at the top left of the map at 3rd floor to collect clays. an also There is stone collection spot at 2nd floor to collect stones.