Pick the ideal campfire spot - Choosing a clear area to build your campfire can help keep your site fireproof. Your campfire should sit in an open space with at least 10 feet of dirt surrounding it in every direction. It should be free from stumps, brush, grass and leaves. It's not a bad idea to keep the surrounding area wet and safe from sparking a blaze. The area needs to be vertically clear as well. Make sure there is nothing above the campfire and it has a clearance at least three times the height of the flame.