Spread your kindling, dried twigs or other dry firewood material to form the base for your fire.
Gather your tinder materials; this can be anything that is highly flammable, such as cotton balls, dryer lint, pine needles, linen or 100-percent cotton fabric, dry and brittle leaves, cattail fluff, or tiny dry twigs. Lay these on top of the kindling and firewood.
Strike a sharp steel knife blade against the flint stone by using firm, short strikes. Hold the flint stone close to the tinder. The sparks will ignite the flammable material quickly if you hold it close by. The sharp edge will shave off parts of the flint and the friction will result in a shower of sparks, which should light the fire, according to the Equipped to Survive website.
Blow gently on the fire, but not so much that you extinguish the flames. Add tinder, but be careful to avoid smothering it.
Add more sticks, kindling or small pieces of firewood to the flames and soon you should have a blazing, warm fire.
