1 Compass Basics 2 The Compass A compass

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Compass Basics >>>>>> 2

The Compass A compass is an extremely valuable piece of equipment used not only by hikers and campers, but also pilots in airplanes, captains of ships at sea, and car drivers everywhere. It is such a simple but powerful item, everyone should know how to use one. Wherever you happen to be on Earth, a compass in your hand will always point North. Whether you are stranded in the ocean, caught in a blizzard, or lost in a deep, dark forest late at night, your compass can always be used to help find the way. Sure, a GPS is pretty cool, but it needs batteries and a satellite signal. Not the magnetic compass! Plagiarized from . . . the <compassdude. com>

Parts of a Compass There are many types of compasses ranging from tiny thumb compasses to complex high-tech gadgets. For most hikers and outdoors adventurers, an orienteering compass works just great and that is what is described below 4 Plagiarized from . . . the <compassdude. com>

How a Compass Works There is a huge magnetic field around the earth. It is huge, but it is not very strong. The magnetized needle in a compass is aligned with this magnetic field. As the image below shows, the composition of the earth acts as a huge bar magnet sitting upside down in the middle of the planet. Since its South end is at the north pole and its North end is at the south pole, the North end of a compass needle is pulled north. A compass has to have a very light needle sitting on a pivot that has almost no friction. This is because the earth's magnetic field is weak and would not be able to turn the needle. 5 Plagiarized from . . . the <compassdude. com>

Compass “Cardinal Points” Cardinal Points There are four cardinal points on a compass - North, South, East, and West. Intercardinal Points The direction halfway between North and East is an intercardinal point and is called North. East. The other three intercardinal points are South. East, South. West, and North. West. Secondary Intercardinal Points Finally, there are secondary intercardinal points halfway between each cardinal point and intercardinal point. These are North-North. East, East. South. East, South-South. East, . . . and so on. 6 Plagiarized from . . . the <compassdude. com>

Compass “Cardinal Points” Cardinal Point Secondary Intercardinal Point 7 Plagiarized from . . . the <compassdude. com>

Compass Reading - Degrees Around your compass, there also numbers and tiny lines. These represent the 360 degrees in a circle that surrounds you no matter where you are. These numbers match up with the cardinal points on the compass in as shown below. 0 45 90 135 180 225 270 315 Degrees Degrees = = = = North. East South. West North. West 8 Plagiarized from . . . the <compassdude. com>

Compass Reading Bearings, & Headings Bearings and Headings basically describe the direction that you would like to travel. For example, to find that secret fishing hot-spot that you heard was about 200 yards into the woods at a bearing of 250 Degrees South-West from the parking Step 1 area. . . You would follow the steps below. 1. . Turn with your compass until the compass needle is pointing to the “North” or 0 degree marker. 2. . Rotate the baseplate of your compass until the “Direction of Travel” arrow matches to the 250 -degree mark Step 2 Travel Direction 3. . Follow the “Direction of Travel” arrow for 200 yards – and have a great day of fishing Plagiarized from . . . the <compassdude. com> To return to the parking area. . . Repeat the same process. . . But this time, your bearing will be 70 -degrees (250 – 180). >> Match the compass needle to the “North (0 -degree) marker >> Rotate the baseplate until the Direction of Travel arrow matches to the 70 -degree mark >> Follow the Direction of Travel arrow back to the parking area Travel Direction to return to parking area. . . 70 -degrees

Compass Reading - Declination Unfortunately – your compass does not work quite as expected !!! Earlier, it was described that the earth is like a big bar magnet. . . Except. . . the north end of the magnet is not actually at the earth’s real north pole. The north end of the earth’s natural magnet is about 1500 miles below and a bit to the west of the actual or geographic north pole. In the Massachusetts area. . . The difference between the earth’s actual north pole and the magnetic north is about 15 -degrees. This difference is called “Declination”. Magnetic North Pole Geographic North Pole About 15 -degrees difference Magnetic North (0 -degree bearing) True North (In Massachusetts this is about 15 -degrees to the right of Magnetic north) 10 Plagiarized from . . . the <compassdude. com>

Compass Reading – Declination Adjustment Whenever directions or bearings are taken from a map, they will always be based on “True-North” (geographic north). If those directions to that secret fishing spot were based on information from a map. . . you will need to adjust the “Direction of Travel” arrow for the 15 degree declination by subtracting the 15 degrees from the “ 250 -degree” bearing instruction. . . to a “Direction of Travel” setting of 235 -degrees. Before Declination Adjustment After Declination Adjustment You can see that the adjusted Direction of Travel is quite a bit different. Many Orienteering-Compasses have adjustment markings and screws that allow the compass to be “pre-set” for the declination adjustment for the area where you are traveling Plagiarized from . . . the <compassdude. com>

Compass Reading – Declination Adjustment The map below shows how the Declination varies across the United States. >> The eastern states require “-” adjustments for declination >> The western states requre “+” adjustments for declination Plagiarized from . . . the <compassdude. com>

Know your Pace Pacing In orienteering or treasure hunting (or finding that secret fishing spot), it is often valuable to count your paces in order to estimate the distance you've traveled in a certain direction. To determine your pace: Accurately measure a distance - using a 100 yard (300 feet) football field is perfect. Walk the length of the field, counting each time your right foot steps down. Or, just your left foot if you prefer. Divide 300 feet by the number of paces you took and that is your pace length. It is a good idea to repeat this in the other direction and take an average. Example. . . For a 100 yard (300 foot) distance, your right foot came down 68 times. So. . . To find that secret fishing spot (200 yards from the parking area). . . Your right foot would need to come down about 136 times during your hike. (68 x 2) Of course, during the hike, there may be hills, trees, swamps and other obstructions. . . So the 136 paces is only a general guess. But if you have traveled 500 paces into the woods and you are not yet fishing. . . It is likely that you have missed your target. Plagiarized from . . . the <compassdude. com>

Compass Lore Radio conversation between two ships passing in the night. . . Voice 1: "We can see your lights and you are on a collision course with our vessel. Please divert your course 15 degrees to the North to avoid a collision. " Voice 2: "I can see your lights too and recommend you divert your course 15 degrees to the South to avoid a collision. " Voice 1: "This is the captain of a US Navy ship. I say again, divert YOUR course. " Voice 2: "No, I say again, you divert YOUR course. " Voice 1: "I am the U. S. S. Wolverine, the largest battleship on this ocean. 14 I DEMAND that you change your course one-five degrees North!" Plagiarized from . . . the <compassdude. com>

Compass Lore Tate Compass Co. There was once a couple named Nancy & Mike Tate, and it was their life' s dream to have a compass company. They finally saved enough money and started the Tate's Compass Company. Luck was with them, for the first contract they acquired was to manufacture 750, 000 compasses for the Boy Scouts. Nancy and Mike worked feverishly day and night to meet their deadline, & finished just before the Boy Scout Jamboree was to begin. On the day of the Scout Wilderness hike, each boy scout was given a Tate's Compass to help them find their way. Unfortunately, it was discovered too late that every single compass was made with the colored point of the needle facing the wrong way, so when one was facing North, the needle pointed to the South. Needless to say, all of the boy scouts got lost & it was the biggest fiasco known in Boy Scout history. The Tate's compass company went out of business, but from 15 this experience came the familiar adage. . . Plagiarized from . . . the <compassdude. com>

Finding Direction with No Compass There are lots of ways to find directions if you've lost or forgotten your compass. They are great exercises to do just to learn them and have handy just in case or to impress your cityslicker friends. These methods can be used to map cardinal directions and better, but remember that they are not nearly as good as a compass. 16 Plagiarized from . . . the <compassdude. com>

Polaris. . . the North Find the Big Dipper in the sky. Star Follow the edge of the ladle 5 times its length up the edge of the ladle. The brightest star there is Polaris the North Star which is virtually north. Cassiopeia is a 'W' shaped constellation across the North Star from the Big Dipper. It's 'W' points right at the north star Cassiopeia North Star Big Dipper 17

Watch Method In the days of digital watches, this one is fading away. * If daylight time is in effect, first set your wacth back on standard time. * Place your watch on something flat with the hour hand pointing to the sun. * True south is mid-way between the hour hand the Number 12 on the watch. * True north is directly opposite. At 5 pm. . . >> Point the “ 5” toward the sun >> Imagine a line between the “ 5” and the “ 12” >> “South” is mid-way between the “ 5” and the “ 12”

Sun Shadow Method The sun moves across the sky from east to west and its shadow gradually changes in length which is what makes this direction finding method work. * Clear a flat area of dirt or sand. Grass will work, but not as well. * Find a stick about 2 or 3 feet long and stick poke it into the ground so it stands up. * Get another small stick or pebble and place it exactly on the end of the shadow line. * Eat a trail bar or relax for a half hour. * Place another stick or pebble at the end of the new shadow. If you have time, wait another 1/2 hour and repeat. * The line between the two pebbles runs east-west direction with the first mark being west and the second being east. * If you are in the northern hemisphere, North direction is perpendicular to the eastwest line heading away from the sun. It's South down under. .

Star Method If you can't find the Big Dipper because it is behind a mountain, or behind clouds this method can help if you can see some stars in the sky: * Find a tall stick about 3 or 4 feet high and stick it in the ground. * Sit on the ground by the stick. • Using another stick about 2 feet long, sight the tops of both sticks to a bright star and stick the shorter stick in the ground. * Come back in a half hour and notice which direction the star has moved. You may want to check this at 15 minute intervals for an hour. * If the star has moved to the right, you are facing south. If the star has moved Left = facing North If the star has moved Up = facing East If the star has moved Down = facing West * The star will most likely have moved up and right or down and right so you will need to estimate the direction, such as South. East or South. West. Starting Position Ending Position Moved Right – you are Facing Ending Position Moved Up– you are Facing East Ending Position Moved Down– you are Facing West

Map Basics >>>>>> 21

Map Basics Whether a charcoal and parchment treasure map or multi-colored, plasticcoated, trail map, maps tell a story of the world around us. Maps help us to locate places, measure distances, and find where we are on the earth. 22

Map Basics Reading maps is not usually difficult because there are some rules that are generally followed when creating and reading maps: North, South, East, and West are the four main "cardinal" directions. On a map, North is at the top, South at the bottom, West to the left, and East to the right. Every map has a Map Scale which relates distance on the map to the world. For example, one inch equals one mile. Using the scale of a map, you can tell the actual distance between two points for real. Maps use Map Symbols to represent real-world things, such as buildings, trails, roads, bridges, and rivers. Maps use colors to share more information. Blue often means water Green means forest White means bare land. A map has a Legend which lists the symbols it uses and what they mean. A grid of imaginary lines wrap around and over the earth. These lines are called Latitude and Longitude and can identify the exact location of any point on earth. 23 Keeping those things in mind, you can read pretty much any map and especially learn how to read a

Types of Maps There are several types of maps. Each show different information. Most maps include a compass rose, which indicates which way is north, south, east and west. They also include a scale so you can estimate distances. Here's a look at some different types of maps. Climate Maps - Give general information about the climate and precipitation (rain and snow) of a region. Cartographers, or mapmakers, use colors to show different climate or precipitation zones. Economic or Resource Maps - Feature the type of natural resources or economic activity that dominates an area. Cartographers use symbols to show the locations of natural resources or economic activities. For example, oranges on a map of Florida tell you that oranges are grown there. Physical Maps - Illustrate the physical features of an area, such as the mountains, rivers and lakes. The water is usually shown in blue. Colors are used to show relief—differences in land elevations. Green is typically used at lower elevations, and orange or brown indicate higher elevations. Political Maps - do not show physical features. Instead, they indicate state and national boundaries and capital and major cities. A capital city is usually marked with a star within a circle. Road Maps - show major—some minor highways—and roads, airports, railroad tracks, cities and other points of interest in an area. People use road maps to plan trips and for driving directions. Topographic Maps - include contour lines to show the shape and elevation of an area. Lines that are close together indicate steep terrain, and lines that are far apart indicate flat terrain.

Basic Orienteering Map Symbols Map Scale Countour Lines (The closer the lines, the steeper the hill) Meridian Lines To line up Compass

Map Symbols 26

More Map Symbols Label Box 27

More Map Symbols 28

Military Map Symbols 29

Military Map Symbols Size Symbology The following symbols placed either in boundary lines or above the rectangle, triangle, or circle enclosing the identifying arm or service symbol indicate the size of military organization: 30

More Military Map Symbols 31

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Troop 116 – Spencer, MA Map Symbols Game 33