Clip-clop of horses’ hooves brought back the old days at 1st and Spring Sts. yesterday.

The occasion was the start of a horseback ride from Los Angeles to Pioneertown near Yucca Valley, a distance of some 350 miles by Equestrian Trails, Inc., a horsemen’s nonprofit organization.

Will Take 11 Days

The trekkers planned to use the Los Angeles County riding and hiking trails to Horse Flats where they will connect with the State Parks and Beaches Riding and Hiking Trails for the next 320 miles.

Jim Hester, state trail coordinator of the equestrian trails said that about 11 days would be taken for the trip and that other riders are expected to join the party along the route. A three-day Equestrian Trail convention is scheduled to be held in Pioneertown beginning May 22. Riding will be one of the principal activities.