There are a number of Resources to be found in Eiyuden Chronicle: Rising. Some of these Resources can be obtained from the environment. This page will detail the location of the Ore resource.
Ore is a common material required for various quests and upgrades. It can be acquired by striking mining spots in the Quarry–specifically the gray/black ones along the main path.
You don’t have to venture far to obtain lots of Ore: the area just past the Mouth has 7 nodes where you can obtain Ore–one of them is near an Ogre though. After looting the ore, you can return to the Mouth to refresh the nodes. Pretty easy, huh?