Mapping Skills Flashcards
What is a grid reference?
A grid reference is a system used to identify specific locations on a map using a combination of letters and numbers.
How many digits are in a four-figure grid reference?
A four-figure grid reference is made up of four digits.
True or False: A six-figure grid reference provides a more precise location than a four-figure grid reference.
True
What do the first two digits of a four-figure grid reference represent?
The first two digits represent the eastings.
What do the last two digits of a four-figure grid reference represent?
The last two digits represent the northings.
What is the purpose of using grid references?
Grid references are used to pinpoint exact locations on a map.
How do you determine the eastings in a six-figure grid reference?
The first three digits of a six-figure grid reference represent the eastings.
How do you determine the northings in a six-figure grid reference?
The last three digits of a six-figure grid reference represent the northings.
What is the main difference between a four-figure and a six-figure grid reference?
A four-figure grid reference gives a general area, while a six-figure grid reference provides a specific point within that area.
True or False: Grid references can only be used on topographic maps.
False
What is the format for writing a four-figure grid reference?
The format is written as two pairs of digits, for example, 1234.
What is the format for writing a six-figure grid reference?
The format is written as three pairs of digits, for example, 123456.
What does the term ‘easting’ refer to in grid references?
Easting refers to the distance east from the origin point of the grid.
What does the term ‘northing’ refer to in grid references?
Northing refers to the distance north from the origin point of the grid.
Fill in the blank: To find a location on a map using a grid reference, you first locate the _____ and then the _____ on the grid.
easting; northing
What type of map features are typically indicated using grid references?
Topographic features such as hills, rivers, and roads are indicated using grid references.
True or False: A six-figure grid reference can be used to locate a feature to within 10 meters.
False
What is the first step to reading a grid reference on a map?
Identify the easting and then the northing.
What is an example of a four-figure grid reference?
An example is 4567.
What is an example of a six-figure grid reference?
An example is 456789.
Fill in the blank: A grid square on a map typically measures _____ kilometers.
1
How can you improve accuracy when giving a grid reference?
Use a six-figure grid reference instead of a four-figure grid reference.
What tools can help you find grid references on a map?
A ruler or a grid overlay can help find grid references.
True or False: All maps have grid references.
False
