I think a one-day tour of Maoxian County can be carried out according to the following route:

1. Morning: Visit Maozhou Ancient City and learn about the history and culture of Maozhou City during the Ming and Qing Dynasties.

2. Noon: Taste Maoxian specialties, such as casserole chicken, Maoxian vinegar, water chestnut cake, horse meat hot pot, etc.

3. Afternoon: Go to the Yaoshan Ancient Village to appreciate the architectural style and traditional culture of the Yao people.

4. Evening: Enjoy the night view of Maoxian County and feel the beauty and tranquility of the city.

If time permits, you can choose to visit places such as the Ancient Chinese Qiang Village and Yangliu Flower Village to learn more about the culture and history of the Qiang people.