It still required rebuilding to reduce it’s size and cleaning out before I used it. I also removed a small satellite fire place that had recently
appeared to give the ground a chance to recover.
In all other places you should aim to leave no trace of your fire when you leave.
When I am laying out a fireplace, I usually do not use a ring of stones, it is unnecessary, it restricts the air flow and it is not a low impact approach. I do
sometimes use two or three stones that can be laid in the area I want to cook in to act as a pot rest. Always make sure such stones are not waterlogged as the heat can cause such stones to burst with violent force.
If such stones are unavailable logs can be substituted but will mean your cooking should be done before they burn away.