Plotting Land with Google Earth Pro

The places where your ancestors lived can tell you a lot about their lives. I’m going to show you a free and easy technique for plotting land in Google Earth. 

plotting land in google earth

episode 67

Would you like to be able to find your ancestor’s property on a map today? Keep reading and watch the video to learn how. We’re going to take U.S. government survey legal land descriptions found in sources such as Federal Land Patents and quickly and easily plot the boundaries in Google Earth Pro. I’ll also show you an easy way to do it for property in Canada too. 

 

Episode 67 Show Notes 

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In the video I show you how to plot the boundaries of a piece of land in Google Earth. We’re going to take U.S. government survey legal land descriptions found in sources such as Federal Land Patents and quickly and easily plot the boundaries in Google Earth Pro. I’ll also show you an easy way to do it for property in Canada too. These strategies come from my book The Genealogist’s Google Toolbox,

Download or Update the Free Google Earth Pro Software

These days there are actually three versions of Google Earth:

  • Google Earth downloadable software
  • Google Earth for Chrome Web browser
  • Google Earth app

All are free, but they are not the same. The app and web browser versions are sort of “Google Earth lite.” The software is what you want because it has all the bells and whistles that will allow you to do all the things I’m going to show you today.

Plotting legal land descriptions in Google Earth has its advantages. If you’re plotting the land of your ancestors, you’ll be able to see what the area looks like today and what the current street names are. In Google Earth you’ll also have access to additional tools that you can use in conjunction with the boundaries you’re going to create, such as historic maps, area photos, and a wide range of data sets that provide more information about the area.

The first thing to do is check to make sure you have the most current version of Google Earth on your computer. Again, we’re using the software so you need to do this on your desktop or laptop computer. You want to make sure you have Google Earth Pro – LINK – A tell tale sign that you don’t is if the Google Earth globe icon on your desktop is grey and not blue. Open it and in the menu go to Help > About Google Earth. Here it should say Google Earth Pro and you can see the version number.

Check the current version number here, and if you don’t already have the program, go ahead and download it.

Now that you have it on your computer, open it up and leave it running in the background. You’ll need a decent internet connection for it to run.

Next pull up the legal land description that you want to plot. Here’s one that I have for some property owned by George Burket. I found this at the Bureau of Land Management Government Land Office Records website. This free website is where you can search for land patent that your ancestors once held.

legal land description - plot in Google Earth

Legal land description at GLO

Even though the Bureau of Land Management places it on the map on their website, you can’t download this or add to it. The advantage of plotting this in Google Earth is that you will have access to much more geographic data, you can add many more details to the map, you can use it in conjunction with other related mapping work that you’re doing, and you can save and share it.  

This description gives us the exact coordinates of the property. Jot down the land description or keep it open in your browser tab so you can refer to it.

In a new browser tab, we’re going to type in http://www.earthpoint.us. This will take us to the Earth Point website.

Search by legal land description

Search by legal land description at Earth Point

This website is free, although some of the features are available only with a paid subscription. Thankfully, the tool for plotting your ancestor’s land patent is free. Some of the free features do require that you sign up for a free account. The feature we are going to use currently does not.

On the Township and Range – Search by Description  page you will see a field for each piece of information found in the land description. It’s important to enter this information in the order presented starting with the State. Select the state from the drop-down menu. Pause a moment to allow the fields to recalculate. This allows the appropriate data to be loaded into the next field based on your selection.

searching land description to plot in Google Earth

Entering data at Earth Point

After you have made each selection, click the Fly to on Google Earth button. This will generate a KML file which can be saved to your computer. KML stands for Keyhole Markup Language, which is the file type that Google Earth uses and understands. KMZ are zipped KML files which also are used by Google Earth.

Save the file to the desired location on your hard drive. Then click the file to open it. It will automatically open in Google Earth (which you already have open). The KML file is now located in your Temporary Places folder in the Places panel. The land is has now been automatically plotted on the map.

The orange outline is the township. In this example it is township T20N R14E. Click the orange ball in the center of the township for details. In the details you’ll find the total number of acres in the township, the latitude and longitude coordinates for the center of the township and corners.

Township in Google Earth

Township in Google Earth

The pink / magenta outline is the Section where the property is. Click the pink center dot for the details:

Land section in Google Earth

Land section in Google Earth

In this example Section 9 consists of 648 acres.

Notice that Earth Point was able to plot the land down to the Section level. However George Burket did not own the entire section. We must return to the land description for the Aliquots.

Aliquots in Legal Land Description

Aliquots in Legal Land Description

In this example, the land was the southeast quarter (SE1/4) of section 9. The land was a total of 160 acres.

We can use the Polygon tool in Google Earth to plot the 160 acres. In the toolbar, click the Polygon tool. This will open the New Polygon dialog box. Type a title, description and source citation.

As you hover your mouse over the map you will notice that the cursor is now a square shape. Click the screen on each of the four corners one at a time in order to set the four corners of the property – in this case the southeast quarter of the section. Once you have drawn the shape you can click on the handle on any corner to adjust precisely.

Click the Style / Color tab in the New Polygon dialog box to adjust the color and opacity of the acreage polygon. You can add color and thickness to the outline, and color and opacity to the fill of the shape. When you have it set the way you want it, click OK to close the New Polygon box. The Polygon is now set.

Moving Plotted Land in the Places Panel

On the left side of the Google Earth screen you will see a series of panels: Search, Places and Layers. At the bottom of the Places panel is the Temporary folder. This is where the KML file was placed when it was opened. However, like its name implies, this is a temporary location. If you want to keep it, you’ll need to move it to a filed location within the Places panel. This will not change the position of the polygon on the map, only where it is filed and saved in the Places panel.

To file a polygon, click on the file in the Places panel, drag it to the desired location, and drop it.  Next, go the main menu and click File > Save My Places. This will save your work so that when you close the program it will not be lost. Google Earth doesn’t auto-save.

Turning Google Earth Polygons On and Off

The polygon plotting the acreage will be visible on the map when the box is checked in the Places panel. If you uncheck the box for the polygon it will still be there, but it will not be visible on the map. This allows you to create and save many items of interest without always having to have them displayed and cluttering up the map in Google Earth.

How to Edit a Polygon in Google Earth

After your land polygon has been set, you may want to rename it. There are two ways to do this:

  1. On a PC right-click on the polygon, either on the map or in the Places panel, and select Rename from the pop-up menu. Type the new name and then press Enter on your keyboard.
  2. Click to select the polygon in the Places panel (highlighting it in blue) and then go to the main menu to Edit > Rename. Type the new name and then press Enter on your keyboard.

You can also restyle the polygon and edit the text. Start by going to the Places panel and click the arrow pointing at the Polygon’s globe icon. This will open it and show the nested content. Click to select the Polygon. Now you can right-click it (PC) and select Properties – OR – go to the menu under Edit > Properties. Either way it will reopen the Polygon dialog box so that you can make the desired changes. When you’re done, click the OK button to close the Polygon.

Saving and Sharing Plotted Land

Snagit is the tool I used to capture the various views of the land I plotted in Google Earth. Learn more about Snag it by watching my videos and reading the show notes for episode 61 (for beginners) and episode 66 (advanced). 

Plotting Canadian Land

Although the Earth Point website doesn’t plot Canadian land, the Legal Land Description Converter website does. It can help you find land in Western Canada (British Columbia, Alberta, Saskatchewan & Manitoba) subdivided by the Dominion Land Survey (DLS) and the Alberta Township System (ATS).

How to Plot Canadian Land

  1. Go to Legal Land Description Converter at https://www.legallandconverter.com.
  2. Enter the Section, Township, Range and Meridian information from the land description.
  3. Click the Calc button.
  4. Click the generated KML file and save it to your computer.
  5. Click the file to open it in Google Earth. It will open in the Temporary folder.
  6. It will fly you the location on the map and outline it for you.
  7. Rename the file if desired, and add source information.
  8. Add source citation.
  9. Drag and drop it to the desired location in your Places panel.
  10. Save your work: File > Save My Places.

Resources

These show notes feature everything we cover in this episode. Premium Members: download this exclusive ad-free show notes cheat sheet PDF.  Not a member yet? Learn more and join the Genealogy Gems and Elevenses with Lisa family here

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Watch more videos about using Google Earth for genealogy in the “Geographic” section of the on-demand Premium Video classes. (membership required)

Answers to Live Chat Questions

Gwynn: ​I would like to know how to match plat with GPS coordinate/ current street address.
Answer: I cover how to overlay a plat map in Google Earth and discover the current street address in my book The Genealogist’s Google Toolbox. 

Roger D​: How exact do you need to be in picking points? Does Google snap to mid-points of lines? 
Answer: Try to be as exact as you can, however as I showed in the video you can reposition them as needed. Google Earth doesn’t snap. 

Lyn: ​Can I do this with English tithe maps?
Answer: There isn’t a website converter that I know of. However I do cover how to overlay digitized maps in Google Earth in my book The Genealogist’s Google Toolbox. 

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The Best Way to Find Free Old Maps at DavidRumsey.com

Our ability to find our ancestors is rooted in two important pieces of information: the locations where they lived and the time frames in which they lived there. This means that old maps are essential to our genealogy research.  

The good news is that there is an abundance of free digitized old maps available online. One of the best resources is the David Rumsey Map Collection website. There you will find over 100,000 free digitized historic maps. These maps span the globe and centuries.  They are perfect for bringing geographic perspective to your family tree.

Best way to find old maps for genealogy

Elevenses with Lisa Show Notes

In this episode 36 of my free webinar video series Elevenses with Lisa I’ll show you how to navigate this ever-expanding free website. Watch the video and then follow along with the show notes in this article. Here you’ll find answers to questions such as:

  • What’s the best way to find maps at David Rumsey’s map website?
  • What is the difference between the search tools (Luna Viewer and MapRank Search)?
  • What are the advanced search techniques for finding the old maps?
  • How can I download maps at DavidRumsey.com?
  • Is it OK to use the maps from DavidRumsey.com in my family history projects?

Rumsey Historical Maps in Google Earth

As we discussed in Ways to Use Google Earth for Genealogy (Elevenses with Lisa episode 12) there are approximately 120 Rumsey old maps available for free in Google Earth. You can find them in the Layers Panel under Gallery.  Each map is already georeferenced as an overlay for you.

ways to use google earth for genealogy with Lisa Louise Cooke

Click image to watch the video and read the article on ways to use Google Earth for genealogy

You can also create your own overlays in Google Earth using Rumsey Maps or digitized maps from other sources. I cover this step-by-step in chapter 16 of my book The Genealogist’s Google Toolbox.

Best Strategies for Finding Free Old Maps

Once you’ve exhausted the few hundred old maps in Google Earth, head to the David Rumsey Map Collection website. Rumsey’s collection includes over 150,000 map, over 100,000 of which have been digitized and are available for free on his website. 

Copyright and Use Permission

You will probably be anxious to use these wonderful old maps in a variety of ways. The Rumsey website provides clear direction on copyright and use permission. Go to: DavidRumsey.com > Home Page > About > Copyright and Permissions.

The good news is that generally speaking, you are free to download and use the digitized maps for your own personal use.

The Best Way to View the Maps

There are several ways to view maps:

  • The Luna Viewer: Browse and search 100,000+ maps
  • The GeoReferencer: Help georeferenced maps, compare maps overlays
  • MapRank Search: Browse & search 6000 maps by time & place
  • Google Earth: 120 maps in the Layers panel, 140 can be added
  • Google Maps: 120 maps included
  • Second Life: View some in 3 dimensions and at a huge scale. Location: Rumsey Map Islands. Includes a welcome center with hundreds of maps, and a 600 meter tall map cylinder showing hundreds of maps.
  • The Collections Ticker: Pop-out distraction!
  • Insight Java Client: Downloadable workspace

Of this list, the best two tools to user are:

  1. The Luna Viewer: Browse and search 100,000+ maps
  2. MapRank Search: Browse & search 6000 maps by time & place

I will show you how to use each. Note that in these examples we will be using a computer to search the site rather than a mobile device or tablet.

The Luna Viewer: How to browse & search the maps

In the main menu under View Collection select the Luna Viewer. Under Luna Viewer click the Launch Luna Viewer button.

Luna Viewer at David Rumsey Map Collection

The Luna Viewer at David Rumsey Map Collection

Tips for keyword searching:

  • In most cases it helps to start with a fairly broad search to see the full range of available maps
  • Be cautious with abbreviations. “MN” does not return “Minn” or “Minnestota”.
  • Advance search provides you with the use of full Boolean operators like “and,” “or,” “greater than,” “contains,” and others.
  • After a search, to return to the full collection, click on “show all” under the search button.

Let’s look at an example of using the keyword search in tandem with the Refine column. If you search for New York City, you will be searching all of the data associated with the maps. Since many maps may have been published in New York City, you will likely see many maps for other areas. You can improve this search by going to the Refine column and under Where clicking on New York City.

The Refine column will show you the first five options in each category (What, Where, Who, When). Click More to reveal all of the additional refining options in that category.

Refine map search David Rumsey

Click More to see all refining options in the Luna Viewer

From the returned results, click a map to view it.

You can select multiple items in the Refine column to filter more narrowly. Remove a filter by clicking it under Remove at the top of the Refine column.

Like genealogical records, old maps may include several pages. Look above the blue BUY PRINT button to see the number of Related maps. In my example of a map of the 1939 World’s Fair in New York City, there were two map pages available. Click Related to display all of the available pages.

David Rumsey map related results

Click the Related link to view all related map pages.

DavidRumsey.com Advanced Search

The Advanced Search feature can be found in two locations:

  • Inside the search box – click your mouse in the box and select Advanced Search from the drop-down list
  • At the bottom of the Refine column on the left side of the screen.

Advanced Search gives you more control over how you search. Let’s look at an example by searching for Sanborn fire insurance maps. 

Searching for Sanborn Fire Insurance Maps

The David Rumsey Map Collection website includes many Sanborn Fire Insurance maps. These maps were created for insurance purposes and provide an incredible amount of detail about individual buildings and dwellings in a given neighborhood.

I recommend using the Advanced Search feature to search for these maps. This is because over the years the name of the company as publisher changed.

How to Find Sanborn Maps:

  1. Click on Advanced Search at the bottom of the Refine column
  2. In the “find all of these words” section, click Fields and select Publisher
  3. Type in Sanborn
  4. On the results page, go to the Refine column and Who click More
  5. There are at least six variations of the Sanborn publishing name.

Old Map books and atlases often include valuable historical text often called historical sketches. You can find these using the Advanced search. Search for the exact phrase Historical Sketch. Run this search and then in the Refine column under Where select an area of interest.

How to Download Maps from DavidRumsey.com

  1. Click the map from the results list
  2. On the map’s dedicated page click the EXPORT button at the top of the page.
  3. Select the appropriate size from the drop-down list. (Larger maps may take a few moments to download)
  4. Typically the maps will download to the Downloads folder on your computer

Tips for Selecting Download (Export) Map Size:
Save space on your computer and future headaches by selecting the correct size map for your use. If you plan on using the map to create an overlay or create a nice large print, select the largest size possible ( I recommend at least Extra Large for creating map overlays in the Google Earth.) This will ensure that the map doesn’t appear fuzzy when you Zoom in. High-resolution is also recommended when printing. For example, if you plan on including the map in a book about your family’s history (for personal use, not for resale) a high-resolution map will print crisp and clear. Maps for use on the web or something like a PowerPoint presentation would be fine at lower resolutions.

MapRank Search at DavidRumsey.com

The MapRank Search “app” at the David Rumsey Map Collection website allows you to browse & search 6000 maps by two important criteria: Time & Place.

There are two ways to find the MapRank Search:

  1. In the main menu under View Collection click MapRank Search. Scroll to the bottom of the page and click the Launch MapRank Search
  2. Scroll to the bottom of the home page until you see Featured App – MapRank Search, and click the Launch MapRank Search

How to Find Maps Using MapRank Search:

  1. Start with entering the location name in the search box (in the upper right corner) and click the Find a Place
  2. The location will appear on the modern-day map. The old maps that match the location will appear in the column on the right, prioritized starting with the map that most closely matches what you searched.
  3. Below the modern-day map, move the time slider levers to narrow in on the desired time frame.
  4. Note that the old maps in the results column will change based on the specified time frame.
  5. Broaden the location if desired by zooming out a bit on the modern-day map. Note that the results list will change as you zoom.
  6. Hover your mouse over a map in the results list and notice that a reddish-brown box will appear the selected map and will also appear on the modern-day map. This indicates the area of the map that the old map covers. This will aid you in selecting the map that will suit your needs.
  7. Click a map from the results list and it will open in a new browser tab, although some maps will appear as an overlay on the modern-day map. In that case, click the Luna Viewer button to go to the page where the map can be downloaded.

How to Compare Modern-day Maps with Old Maps

Whether you have found the map by searching with the Luna Viewer or the MapRank Search you will eventually find yourself on the page where the single map is displayed. On the left is the source information.

In the upper right corner of the screen click the View in GeoReferencer button. You will be taken to a page where you can view the old map overlayed on the modern-day map. In the upper right corner move the slider to make the old map transparent so that you can compare between the two maps.

Recap: Comparing the Two Best Search Tools at DavidRumsey.com

Luna Viewer:
– 100,000 maps
– Search, then refine
– Sometimes glitchy interface

MapRank Search:
– 6000+ maps
– More control with time slider & map
– Map results list ranked by closest coverage

Live Chat Q&A: Answers to Your Questions About David Rumsey Maps

One of the advantages of tuning into the live broadcast of each Elevenses with Lisa show is participating in the Live Chat and asking your questions.

From Megan: What is the difference between Google Earth and My Maps?
From Lisa: Google Earth is a free software download. This is where I create what I call family history tours. They are a collection of data points and media that come together as a research tool and storytelling tool. My Maps are created in Google Maps. I prefer creating in Google Earth because it offers more tools and options, and it’s where I keep all my mapping work. 

From Gwynn: Heard in the past Java Client might have security holes has this been fixed?
From Lisa: Read more about the latest on Java Client at the website’s FAQ page

From GeneBuds: Must set up account to use Luna Viewer?
From Lisa: No, you don’t have to have an account to use the Luna Viewer. “Registering for an account allows you to save your work and preferences, search external media, create Media Groups and Presentations, customize your settings, create annotations, and upload your own content.” As I mentioned in the video, I prefer to do all my work in Google Earth. 

From Gwynn: Sanborn Fire Maps: Where do I find the Key to the symbols? Are they the same from year to year or do they change?
From Lisa: Here’s the main resource page for Sanborn maps at the Library of Congress. You will find specific information about interpreting the maps including Keys and Colors here.

From Karen: ​If you are specifically looking for plat maps for our US farmers would you put the word plat in the search field?
From Lisa: I would use the Advanced Search and enter the word plat in the “Find all these words” box. Click the plus sign to add an additional “Find all these words” field and type in the name of the location. If that doesn’t deliver the desired result, omit the location and just search on the word plant. Then, on the results page, go to the Refine column and under Where click More. Then you have a nice list to browse. You might spot a map that includes your location. TIP: When you find a result, be sure to check the Related number at the top of the page so that you didn’t miss any additional pages of the map. 

From Mark: Lisa and Bill, is the intro music something that you all wrote?
From Lisa and Bill: No, it’s by a talented musician named Dan Lebowitz. Our goal this year was to learn to play it ourselves 🙂 We’re glad you love it as much as we do!

Resources

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