Adding Markers and Labels: Once you have created your map, you can add markers and labels to mark specific locations or routes. To do this, click on the "Add marker" icon and enter the latitude and longitude coordinates of the location you want to mark. You can also use the keyboard shortcuts (e.g. Ctrl + Shift + M to toggle markers on/off).

Viewing Existing Maps: If you need to view an existing map, click on the "My places" button at the bottom left corner and select the map you want to view.

A Step-by-Step Guide to Creating and Viewing Maps on Google My Maps

Here is a step-by-step guide to creating and viewing maps on Google My Maps:

1. Create a new map by searching for it in your browser and clicking on the "Create" button.
2. Add markers and labels to mark specific locations or routes using the keyboard shortcuts (e.g. Ctrl + Shift + M).
3. View existing maps by selecting the "My places" button at the bottom left corner and selecting the map you want to view.

https://www.google.com/maps/d/viewer?mid=1sRrBOr-NUHrHi_TK6dxssz-a_XrGsH8P