Can I copy my Maps Favorites from Yosemite to El Capitan?

You might try making a copy of these two files:

/Home/Library/Preferences/com.apple.MapsSupport.plist

/Home/Library/Preferences/com.apple.mediaaccessibility.plist

And, transfer them to the same folder on the other computer.

Three Ways to Make the Home/Library Folder Visible

A. This method will make the folder visible permanently. Open the Terminal application in the Utilities folder and paste the following at the command prompt:

chflags nohidden ~/Library

Press RETURN.

B. Click on the Desktop, press the Option (⌥) key, select Library from the Finder's Go menu.

C. Select Go To Folder from the Finder's Go menu. Paste the following in the path field:

~/Library

Click on the Go button.

[Exclusive permission to use the above has been granted to theratter by Kappy.]

How about moving the

~/Library/Containers/com.apple.Maps

moving the folder from here

~/Library/Containers/

Fitzbew wrote:

Moving the entire ~/Library/Containers/com.apple.Maps folder to the same folder on the new Mac solved this issue.

Thank you!

Good computing Fitzbew, glad this was helpful.