Forum:Littering or not ?

In Harvest Moon: Back To Nature,  I was wondering if throwing useless ore inside the Mine would count as Littering. Because everytime I use my hoe, there is a possible chance of getting ore and seeing a ladder. So if I don't throw them somewhere else, I will not get through the 10th floor of the Mine. Because littering will make you fish so many garbages and I don't actually want my time to get waste.