Race fans are invited to participate in the 4th annual Track Walk at Infineon Raceway once the checkered flag drops on the Toyota/Save Mart 350 NASCAR Sprint Cup Series race, June 21.

This is a rare opportunity for fans to walk the same twists and turns driven by drivers Jeff Gordon, Tony Stewart, Mark Martin and Dale Earnhardt Jr. An added bonus is a massive scavenger hunt for blue-and-gold specially-marked lug nuts that will be hidden on the road course.

Fans can enter the track from six locations around the road course: the north end of the Main Grandstand; Turn 1; Turn 2 hospitality area; Turn 7; Turn 9 (at the south end of the terrace); and Turn 11.

Track officials will drop the lug nuts around the track prior to opening the gates for the Track Walk, and the people who find those lug nuts will be treated to great prizes, including a big-screen TV, Save Mart Supermarkets gift certificate and 2010 Toyota/Save Mart 350 race tickets. Fans can redeem the specially marked lug nut at the Ticket Pit Stop located behind the main grandstand.

The Track Walk is free, but the raceway encourages participants to pre-register at the Speedway Children's Charities booth located next to the Ticket Pit Stop. You can also pre-register at any information booth. Fans are also encouraged to make a voluntary contribution to Speedway Children's Charities, the charitable arm of Infineon Raceway. The charity benefits youth groups in Sonoma County and has distributed more than $3 million since 2002.