After you have signed up (instructions are on another document) and been confirmed you should be getting all of the emails that go to the group.
If you want to find newsletters on the main page of the Groupsio site;
https://groups.io/g/WiGoHikingClub
you will see a list on the left,
If you want to find newsletters on the main page of the Groupsio site;
https://groups.io/g/WiGoHikingClub
you will see a list on the left,
Click on Files. Then click on Newsletters,
Then click on the year that you are looking for. Then select the newsletter you want to read. Other files like Miles Reports, Meeting Minutes, etc. can be found in much the same way.