Ideally the campfire should be located fairly close to the centre of the campsite. You must take into account the prevailing wind direction before you set up any area of your campsite. You will not want the wind blowing the smoke and embers towards any tentage (or indeed any other area), and the prevailing wind will also determine your type and layout of the fire itself.

Position your campfire downwind of the rest of your campsite. If there is not already a fireplace you will need to clear the ground for a distance of around 2m of any dirt/grass/leaves etc., or use a form of trench fire.