Now, let's look at a geologic feature. Put 360535.38 N 1131443.70 W into the search bar and zo

step 1 So in this question here, we want to solve for the length of B, C, or let's call it side A. To s

Now, let's look at a geologic feature. Put 360535.38 N...

Now, let's look at a geologic feature. Put $360535.38 \mathrm{~N} 1131443.70 \mathrm{~W}$ into the search bar and zoom out to an eye altitude of $\sim 25,000$ feet. This is the Grand Canyon. If you started out in Washington, D.C., what bearing would you need to travel in to go to the Grand Canyon? a. 210 b. 245 c. 275 d. 315

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Key Concepts

Geographic Coordinates

Geographic coordinates use a system of latitude and longitude to define any point on the Earth’s surface. This system allows for precise identification of locations and is fundamental in geographical studies, mapping, and navigation. The coordinates provide the basis for translating a location into a usable format for calculations and visualization on maps or globes.

Compass Bearing

A compass bearing is an angular measurement that indicates direction relative to a fixed point, usually true north. It is used in navigation to specify the direction from one point to another. In this concept, the bearing is determined by calculating the initial angle of the great circle route from the starting point to the destination, which is essential for plotting an accurate course over the Earth’s curved surface.

Great Circle Navigation

Great circle navigation involves plotting the shortest route between two points on the surface of a sphere, such as the Earth. Since the Earth is nearly spherical, the most direct path between two locations is along the arc of a great circle. Calculating the initial bearing along this route is crucial for long-distance navigation and is a key concept in geodesy and cartography.

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