We closed about a month ago on our new place.. those survey stakes with ribbon on them are all that is marking the corners. They will be starting to build on the 5 acres behind us this month... so I need to get a more permanent marker down before these stakes are run over of pulled up or whatever... What have you guys done? What can you recommend? There is no fence yet. The last owner started with the corners but didn't finish. The started corners are NOT the property line corners and we will not be using those started corners when we build our fence.