For the final leg of her journey Miriam is in Arkansas, meeting her first ever cowboy.
Dan and his wife Peggy live on a huge ranch and completely believe that President Trump is the answer to all their troubles.
Next up is a small town dubbed the most racist in America, before the irrepressible 76-year-old makes herself at home with a devout Christian family with 12 children.
After listening to some extreme and unpleasant opinions on the way, Miriam ends her journey on a high when she meets a truly inspirational female sheriff in Texas and a gang of fearless female bikers in New Orleans.
Please note this programme airs at 11.05pm in Wales.