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Navigate Without GPS

Map, Compass, And More

By Kevin Blumer, Photography by Kevin Blumer
Navigate Without Gps Map Compass Glove Box

We love GPS technology, so why would we spend time and precious pages telling you how to get along without it? A few reasons come to mind. Not everyone has a GPS unit. GPS units can break down. The satellite signal can be lost in dense woods or deep canyons. Above all, it's empowering to be familiar with more than one way to find your way.

We'll break this down into two general categories: map and compass, and general route finding.

Don't Fear the Map
Some people get intimidated or annoyed by maps. Maybe you're one of them. If so, take some time to study your map before you go out into the dirt. That way, you'll have some familiarity with your map before you have to depend on it.

1. This sounds obvious, but keep your map and compass in a designated place here you can find them. While shooting these photos, I was sure I'd left one of my maps on the ground and drove off. I backtracked to the spot, got out, and looked all over the place. No map. I finally started digging through my stuff and found the map was in my camera backpack! After that, I put all the maps and my compass in the glove box.
1. This sounds obvious, but keep your map and compass in a designated place here you can f

Maps Have Themes
Not all maps are created equal. Maps are used to show data and spatial relationships. Different maps could be created for the same area that would look radically different from one another. One could show population density, while another could show average rainfall. Still another could show street routes and not much else. The type of maps used for off-road navigation is usually topographical, and include contour lines or other markings to indicate what the natural terrain is like.

Map Checklist
Make sure the map you purchase shows natural features. Rivers, mountains, lakes, etc., should all be indicated. The map should also show how steep the mountain slopes are, or aren't. Your map should show established routes, and what type of routes they are: paved roads, dirt roads, 4WD trails, or hiking trails. Your map should also indicate who owns the land. Private land, U.S. Forest Service land, BLM land, city-owned land, and Federal wilderness all go by different sets of rules when it comes to vehicle access. Your map should also have a scale, so you'll know what distance an inch on the map represents on the ground.

True North vs. Magnetic North
True north is at the North Pole. Magnetic compasses point to magnetic north, which is somewhere in the Arctic Ocean. Most maps should show the difference, which is called the declination. In North America, the declination is about 13 degrees east. Most maps will indicate the declination in the key or legend. The tricky part of true north vs. magnetic north is that maps are drawn with north facing true North, while your magnetic compass points to magnetic North. Not to worry, as there's a way you can reconcile the two and find your way.

  • 2. Here's the view ahead. We can use the hills on the right and the telephone poles to help us navigate. Several sets of pre-existing tire tracks show that this is a beaten path. Be aware, though, that if all the tire tracks appear the same it might be the same vehicle making several trips back and forth.
    2. Here's the view ahead. We can use the hills on the right and the telephone poles to hel
  • 3. Looking 180 degrees in the opposite direction, we can see that the telephone poles are now on our left, and we can see the tops of a couple of rock outcroppings . Larger mountains loom in the distance.
    3. Looking 180 degrees in the opposite direction, we can see that the telephone poles are
  • 4. Holey rocks, Batman! Distinctive features like this one make good navigation landmarks.
  • 5. Railroad tracks are great route-finding aids, but be careful to stay a safe distance from the tracks.
    5. Railroad tracks are great route-finding aids, but be careful to stay a safe distance fr
  • 7. Good idea: Your hood makes a great surface on which to lay a map.
  • 8. Bad idea: A steel hood will affect a magnetic compass. Even if you've got a fiberglass hood, there's a possibility that steel parts under the hood will throw off the reading. It's best to hold the compass in your hand or lay the map and compass on the ground. If there's enough iron in the soil, that too can throw off the reading - a rare situation, but a reality nonetheless.
    8. Bad idea: A steel hood will affect a magnetic compass. Even if you've got a fiberglass
  • 6. Landmarks don't have to be natural features. This dilapidated boxcar is a great navigational aid.
    6. Landmarks don't have to be natural features. This dilapidated boxcar is a great navigat
  • 9. It seems like there's always a breeze blowing out on the trail. A few rocks help keep the map from flapping. It's not always necessary to unfold the whole map. Often, you can fold sections underneath and just keep the relevant sections facing upward. Folding the map into a more compact size works well when inside your rig. It's also better to look at the map before you become disoriented. If you use the map as a guide, chances are you won't have to use it as a rescue tool.
    9. It seems like there's always a breeze blowing out on the trail. A few rocks help keep t
  • 10. A map needn't be chock-full of information. This page from Harry Lewellyn's Glovebox Guide shows the pertinent parts of the route only. Note the disclaimer: No scale. Not for navigation. There's enough information on this page to get you from A to B, but it's best to have another map with more detail along for backup. Each of the routes in the Glovebox Guide has a list of supplemental maps for this purpose.
    10. A map needn't be chock-full of information. This page from Harry Lewellyn's Glovebox G
  • 11. Here's a view of some contour lines in the Moab, Utah, area. Note how close together they are along Porcupine Rim. This is information that could save your life, as Porcupine Rim is a sheer drop-off. On this map, each contour line represents 50 feet of elevation change.
    11. Here's a view of some contour lines in the Moab, Utah, area. Note how close together t
  • 12. Each map includes a key or legend to help make sense of it. Here, we see that one inch on the map represents 3.95 miles on the ground, or 1:250,000 scale. We can also see that the map is drawn with true north at the top and shows the magnetic declination of 13 degrees. The contour interval is 200 feet.
    12. Each map includes a key or legend to help make sense of it. Here, we see that one inch
  • 13. The rotating compass ring, called the azimuth ring contains the compass needle. There are two sets of markings along the perimeter. The outer markings are MILS and are used in military navigation. We're concerned with the inner markings which are degrees. As always, there are 360 degrees in a complete circle.
    13. The rotating compass ring, called the azimuth ring contains the compass needle. There
By Kevin Blumer
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