Well-wishers gathered at the railway station from early morning, waving flags, wearing Union flag hats and hoping to catch a glimpse of the monarch as he arrived shortly after 10.30am.
The King stopped to shake hands, exchange a few words with residents and admire a corgi puppy brought along specially for the occasion.
The atmosphere was festive throughout as families, children and long-time royal supporters lined the route to welcome His Majesty.
Here are 19 photos capturing the royal visit as it unfolded:
17. Crowds greet King Charles III as he arrives in Lancashire on Royal Train
King Charles visits East Lancashire today and He is greeted by well-wishers outside Clitheroe Station | Dave Nelson
18. Crowds greet King Charles III as he arrives in Lancashire on Royal Train
King Charles visits East Lancashire today and He is greeted by well-wishers outside Clitheroe Station | Dave Nelson
19. Crowds greet King Charles III as he arrives in Lancashire on Royal Train
King Charles visits East Lancashire today and He is greeted by well-wishers outside Clitheroe Station | Dave Nelson