Mammouth draft horses will be showing off again Sunday May 20 at Jack London State Park for the 29th annual Plowing Playday.

Visitors will watch plowing and harnessing demonstrations and take free wagon rides. Making the work look easy will be the teams of mules and Clydesdale’s Percheron’s, Shire and Beglian draft horses.

Blacksmiths and keepers of early day gas engines also will be giving demonstrations.

The North Coast Draft and Mule Association sponsors the event, held at the park outside Glen Ellen where the famous author used to keep his own Shire draft horses. It will feel like stepping back into history.

The event runs 10 a.m. to 4 p.m. Visitors have to pay admission to the park, which is $10 per vehicle.

To get a glimpse of what you might see, here is a video I produced before the 2009 event.