Amgen Tour of California bike race officials are still keeping mum about the actual route between Nevada City and Auburn. But they have put out a call for volunteers. Auburn is in the running for Lance Armstrong and the rest of the peloton to ride through during the race’s first stage in May. And the Amgen tour is now looking for volunteers to man the initial stage as well as others. Michael Roth, the tour’s vice president of communications, had said in December that the details for each ride route would be given Feb. 1 at the official 2010 Amgen route announcement. But a staff member with the tour responded to Journal inquiries Monday by saying the announcement wasn’t taking place. No reason was given for the change in plans. Volunteer opportunities are now posted online at the official race Web site, www.amgentourofcalifornia.com. Anyone wanting to volunteer to participate in the fifth annual cycling race can apply online for positions, including hospitality, volunteer course marshals, security, and media operations. The fifth edition of the annual race will travel to 16 host cities throughout the state over the course of eight days from May 16-23. It starts in Nevada City and finishes in Thousand Oaks. More than 4,500 volunteers in communities throughout the state participated in last year’s race. The majority of volunteers are needed to serve as course marshals, providing support for the 75 professional course marshals who travel with the tour. Course marshals work with law enforcement to monitor pedestrian traffic, barricades and road closures. Volunteers must be over the age of 18 or accompanied by an adult. “Getting involved with the race as a volunteer allows local residents to take part in an event that captures the attention of local communities and the world, in addition to witnessing first hand in the behind-the-scenes planning involved in an event of this stature, said Andrew Messick, president of tour presenter AEG Sports.