A compass is used to determine the direction of true north, which is essential for orienting a map and determining the direction of travel.

Topographic maps include elevation contours, which provide information about the shape and elevation of the terrain, while road maps focus on showing roads and highways.

The declination adjustment on a compass is used to compensate for the difference between true north and magnetic north, which varies depending on location.

Using a map and a protractor is not a common method for determining direction without a compass, as it requires precise measurements and calculations.

The scale on a map indicates the distance between two points on the map, allowing you to measure distances and plan your route accordingly.

Orienting the map refers to the process of aligning the map with the surrounding terrain, ensuring that the features on the map correspond to their actual locations.

Contour lines on a topographic map connect points of equal elevation, providing information about the shape and elevation of the terrain.

The Gnomonic projection is not a common type of map projection used for trekking, as it is primarily used for navigation near the poles.

Plotting your position refers to the process of determining your current location on a map using various techniques such as triangulation or GPS coordinates.

The legend on a map provides explanations for the symbols and colors used on the map, helping you understand the features and information represented on the map.

A compass with GPS integration is not a common type of GPS device used for trekking, as it is primarily designed for navigation using a compass and does not have the same features and functionality as dedicated GPS devices.

Navigation refers to the process of following a predetermined route on a map, using various techniques such as compass bearings, landmarks, and GPS coordinates.

The grid system on a map provides a reference system for locating features on the map, allowing you to pinpoint specific locations using grid coordinates.

Stars are not commonly used as landmarks for navigation during trekking, as they are not always visible and can be difficult to identify accurately.

Measuring distance and direction refers to the process of determining the distance and direction between two points on a map using various techniques such as a scale, protractor, or GPS coordinates.