I walked the tracks the other day near my home and there is a lot of small pcs. of iron the RR has discarded. Are these illegal to recycle? There small pcs. about 10" sq. that the track sits on top and then the spikes go through the corners to hold them down. They throw them to the side as they replace them along with the spikes. And I counted at least 10 pcs of old track laying in the woods. Anybody ever tried this?