Scale Scale is the proportion between a distance

Scale • Scale is the proportion between a distance in the field and a distance on the map • A scale of 1 to 50, 000(1: 50, 000) means 1 unit of horizontal measurement on the map equals 50, 000 units of measurement in the field – For example, 1 cm on the map = 500 meters in the field

Specialty Maps • Specialty maps covering specific areas (1: 250, 000) are useful for overview purposes, like planning a trip • These small scale maps cover a large area with limited detail, making them of limited use for specific planning or navigation in the field

Route Planning • For route planning and mountain navigation, the 1: 50, 000 series maps are the standard I most of Canada • They are ideal for foot travel and terrain recognition

Dating Information • Attention must be paid to the age of the information used to create a map • Many mountain areas have not been surveyed or photographed for a number of years and the information will be dated – Extent of glaciations – Changes to roads, buildings and other man-made features

Dating Information • The age of the information given on the maps can be ascertained by looking for dates of air photographs, surveys, and culture checks used to produce the map • This information is generally printed on the map border • In popular areas, privately published maps can provide additional updated information

Interpretation of Maps • When reading a map, a guide generally focuses on distance, direction and detail to interpret the information on the map • Distance is relatively simple to interpret assuming you understand the scale of the map • Distance between two points can be as simply done using a ruler, string, or strip of paper

Map Work-Distance • Distance practice exercise • Working with a partner, determine the scale of the map, then using a string find the distance between 10 different locations • Include the straight distance, then the driving distance • Record your information on paper

Interpretation of Maps • Direction problems are the root causes of many problems with interpretation • It is essential to orient the map to the landscape • This means you have north on the map facing north on the ground, whether by lining up features on the landscape or by using a compass • Identification of landmarks is essential for this to work

Interpretation of Maps • You must understand the details shown on the map, namely the water features, vegetation, contour lines that illustrate landforms, and cultural features • To assist with this, a variety of symbols, colors, contour lines and shading are used • There is a legend printed on most maps to help the user identify unknown symbols and colors

Map Work-Details • With the same partner look at the different symbols and features of the map • Choose 10 Symbols or features and find 5 equivalent locations on the map • Record your information