The fire is not only the social hub of a campsite; it also is what keeps us warm and cooks our food.

For many people, however, building a safe, enjoyable campfire never seems to come easy. They light a match, start a small blaze and then watch as the crackling fire they had hoped for turns into a pile of scorched, smoking sticks.

Building a campfire isn't difficult, however, if you carefully follow a few guidelines. Done right, all you'll need is a single match, maybe two, to get it started.

For safety's sake, begin by choosing a safe spot for the fire. Pick a location in an open space more than 10 feet away from brush and trees. Then clear a 10-foot circle down to mineral dirt -- free of dry leaves, grass, twigs and pine needles. On grassy soil, cover turf with a mound of mineral soil. If the ground is wet, build your fire on a floor of sticks or bark of dead trees. In winter, scrape away snow before laying this floor.

Next, you'll need perfectly dry fuel for making the fire. This includes three types of material: tinder, kindling and fuel. The type of tinder, kindling and fuel you use depends on the area in which you're camping. By keeping your eyes open and experimenting with native materials, you will quickly learn what to use.

Tinder is flammable material that will flare up when touched with the flame from a burning match. In areas with evergreens, look for the tiny dead twigs that seem to sprout right from the bark. The tips of dead branches of many other kinds of trees are also usable. An old mouse or bird nest can provide good tinder, too. If everything else is wet, split open a log with a hatchet, and you are pretty certain to find dry wood in the center. Cut the center part into small sticks and whittle out wood shavings for starting your fire.

Kindling is thin branches or split wood that will catch the flame from the tinder and, in turn, ignite the heavier fuel. Use pieces about the thickness of a pencil gathered on the ground or split from the interior of logs.

Fuel does the real job of providing heat or a cooking fire. This can range from thumb-thick branches for cooking a simple meal to heavy logs for keeping a fire going throughout a long night in a winter camp.

Gather a good-sized pile of each material -- tinder, kindling and fuel -- before you start laying your fire. One of the biggest mistakes made by greenhorns is not having enough of each to get a blaze going.

The experienced camper builds each fire to meet a particular set of needs.

From this point, add progressively larger sticks to the fire, always making sure that enough oxygen is getting to the wood. The first reaction might be to throw on a big log right away, but this would probably just snuff the fire out. Instead, work your way up to bigger and bigger pieces of wood, maintaining the air flow underneath. Eventually the fire will be blazing strong, and you can add those larger logs.

There are many other fire lays you can use that will serve your needs just as well as the lean-to lay. Use any you might learn, but always remember to follow the three basic rules of fire-building: 1) make sure your fuel is very dry; 2) use plenty of tinder to light your kindling, and plenty of kindling to light your fuel; and 3) lay your fire materials so plenty of air can flow through and feed oxygen to the blaze.

The experienced camper builds each fire to meet a particular set of needs. For example, if you need a cooking fire, you'll be better off burning hardwoods such as oak and hickory and creating a horizontal bed of coals to cook on or over. If you're baking with a reflector oven, you need flames that radiate heat. Softwoods like pine burn hot and fast, making them ideal for this type of fire. For your evening "friendship" campfire, you will want a fire that lights up the whole circle and goes on burning throughout the evening. Stacking wood log-cabin fashion, a couple of feet high, is ideal for this.

Make your fire just large enough to meet your needs. That's one of the main secrets of proper fire building -- the smaller the fire, the safer it is. When the fire is started, never leave it unattended. And when you're ready to leave, extinguish the fire by killing all embers and dousing all sticks with water. Stir and douse again.

Do these things and you will find it quite simple to enjoy the benefits of a safe, enjoyable campfire on every camping trip.