So, Granny D is a woman who became famous for walking across America to try and get people to care about the environment and to get them to vote.
Imagine if you wanted to tell all your friends about something really important, like how to keep animals safe or how to take care of our planet. But your friends are all scattered around the country and you can't visit them all in one day.
Well, that's kind of what Granny D did - she wanted everyone to think about the environment and voting, but she couldn't just talk to a bunch of people all at once. So, she decided to walk across America to spread her message and talk to people along the way.
Now, walking across America is no easy feat - it's a really big country with lots of different places to go. But Granny D was very determined to get her message out there, so she put on her walking shoes and started walking.
As she walked, Granny D talked to lots of different people - other walkers, drivers, shopkeepers, and anyone else she could find. She even talked to famous people like senators and governors!
Granny D believed that everyone should be involved in making the world a better place, and that's why she wanted people to vote. When we vote, we help choose the people who make big decisions about things like the environment and our communities.
So, walking across America was kind of like Granny D's way of saying, "Hey, everyone! Let's talk about the planet, and let's make sure we're all doing our part to keep it safe. And let's also make sure we're choosing leaders who care about these things, too!"
And that's why Granny D is so cool - because she did something really important and inspiring, just by putting one foot in front of the other and having some good talks along the way.