Step-by-Step Guide to Downloading Free Topographic Maps Using Google Earth
In this tutorial, we will guide you through the process of downloading high-resolution topographic maps from the online repository of the University of Texas Libraries, using Google Earth to visualize and access these valuable resources.
Step 1: Access the Topographic Map Collection
To begin, navigate to the University of Texas Topographic Maps Collection. Here, you can find a wide range of maps available for download.
Step 2: Download the Topographic Map Indexes
Scroll down on the website until you find the option to download the topographic map indexes for the entire world. Click on this option to initiate the download process.
Step 3: Open the KMZ File in Google Earth
Once the download is complete, locate the US Army Maps v17 file (a KMZ file) on your computer. Double-click on this file to open it in Google Earth Pro. If you haven’t installed Google Earth Pro yet, make sure to do so before proceeding.
Step 4: Explore the Map Grids
Upon opening the KMZ file, you will see a variety of grids covering different areas across the globe. Each grid corresponds to a specific scale, which helps you narrow down your search for the desired topographic maps.
Step 5: Narrow Down Your Search
To focus on a particular area, deactivate all other options and only activate the maps at a scale of 1:250,000. This will reduce the number of available maps, making it easier to locate the one you need.
Step 6: Selecting and Viewing a Map
Once you find an area of interest, click on the corresponding grid. A dialog box will appear, allowing you to view the map. You can either click the map hyperlink or right-click on the blue map and copy the link to open it in a browser.
Step 7: Download the Topographic Map
After opening the map in your browser, you can save it by right-clicking on the image and selecting “Save image as.” Choose a name for the file and save it to your desired location.
Step 8: Downloading Additional Maps
If you wish to download another topographic map from a different region, repeat the process by navigating to the desired area in Google Earth, copying the link, and following the same steps to save the map.
FAQ
- What is a KMZ file? A KMZ file is a compressed KML file used by Google Earth to store geographic data, including the locations of various maps and overlays.
- Can I use these maps for commercial purposes? Always check the usage rights and restrictions associated with the maps you download, as they may vary.
- What if I encounter issues downloading the maps? Ensure that you have a stable internet connection and try refreshing the page or using a different browser if necessary.