Hey there shanyn48,
Thanks for reaching out to the Apple Support Communities. To get started, do you by chance have a recent backup created from before the Guides went missing in the Maps app?
If unsure, check out the following resource for help with checking on any recent backups: Locate backups of your iPhone, iPad, and iPod touch - Apple Support
Find and manage backups stored in iCloud
If you use iCloud Backup, you won't find a list of your backups on iCloud.com. Here's how to find your iCloud backups on your iOS or iPadOS device, Mac, or PC.
1. On your iPhone, iPad, or iPod touch:
2. Go to Settings > [your name] > iCloud.
3. Tap Manage Storage, then tap Backups.
4. Tap a backup to see more details about it, choose which information to back up, or delete the backup.
Search for the backup folder on your Mac
To find a list of your backups:
1. Click the magnifier 
in the menu bar.
2. Type or copy and paste this: ~/Library/Application Support/MobileSync/Backup/
3. Press Return.
4. Select the Backup folder under Folders.
Find a specific backup
On a Mac with macOS Catalina or later:
1. Open the Finder. Click your device.
2. Under the General tab, click Manage Backups to see a list of your backups. From here, right-click on the backup that you want, then choose Show in Finder, or select Delete or Archive.
3. Click OK when you're finished.
On a Mac with macOS Mojave or earlier, or on a PC:
1. Open iTunes. Click your device.
2. Choose Preferences, then click Devices. From here, right-click on the backup that you want, then choose Show in Finder, or select Delete or Archive.
3. Click OK when you're finished.
Search for the backup folder on Windows 8 or 10
1. Find the Search bar:
- In Windows 8, click the magnifying glass in the upper-right corner.
- In Windows 10, click the Search bar next to the Start button.
2. In the Search bar, enter %appdata%. If you don’t see your backups, enter %USERPROFILE%.
3. Press Return.
4. Double-click these folders: "Apple" or "Apple Computer" > MobileSync > Backup.
If you're able to locate a recent backup, you may be able to restore that backup to your iPhone to restore the missing Guides. We do want to make you aware that this will remove any information on the iPhone that was added after the backup was created.
For help with restoring previous backups, check out this next link here: Restore your iPhone, iPad, or iPod touch from a backup - Apple Support
Let us know if that's able to help.
Take care!
