USING GOOGLE MAPS
Name your map
Use the draw a line feature to mark your route
Use the marker feature to mark checks/on backs and half way bucket.
Here is an example of a hash I created on google Maps
Once map is created, it will be saved on your Google Drive https://drive.google.com/drive/my-drive
In Google Drive, you can send the link to the Trail Master(s). Right click on the trail, and select “Get Shareable Link”, make the link public, by selecting “Anyone with the link can view”. Now share the link with the TM (FB messenger/email or SMS works OK to do this)
TM: It may open in a web browser. In the web browser, click on ellipsis: and select “Open in Maps”