Does your research tell you if it was a lumber camp, lumbermill or sawmill. There will be a varying degree of relics depending on what it is. Many landowners had their own smaller sawmill operations that were used only by them and their neighbors ....remnants of these can be found along millponds and small creeks , Full blown logging camps saw a great many loggers in and out and these are where you find the majority of old coins,dumps and iron relics. Fullblown lumbermills (sawmills) were usually set on a river and the relics are a little harder to find as there were multiple layers of sawdust and bark. Dams went out and these lumbermills were often prey to the tempermant of the rivers.