One more jamboree separates the Monster Truck Thunder Drags from crowning a champion in the 2011 campaign.  The series has gone from Missouri, to Ohio, then swung through Pennsylvania, and now it is set for the biggest jamboree of the season.

The season finale is set at the same location where earlier this month, many families were devastated due to the unfortunate stage collapse that killed six and injured many others.

It's the Indiana State Fairgrounds that host the biggest jamboree every year, and this year it's planning to be bigger than any in years past.  For 30 years, the 4-Wheel Jamboree at Indianapolis, Indiana, has been the home to the most competitors, the toughest courses, and the most fans.  It's appropriate as it is in an area that has always been known for motorsports.

This year, the jamboree is celebrating it's 30th anniversary, and is planning to bring the most trucks for competition since the years of the Penda Points Series.

Over the years, the course itself has gone from being a muddy swamp to now being paved over, and it has made for unique courses and strategy for victory.

At the same time, being held in mid-September also means the weather can become a factor on occasion.  Last year, the weekend was free of rain until the final day, but cleared up enough to go racing in the afternoon.  In years past, that would mean the race course would be a mud fest, and traction would be difficult.

Now that it's a paved parking lot, and only dirt used is on the front stretch and for the ramps, the teams that find the most grip are the ones that set up for both on and off road.

Let's take a look at the line-up for the 2011 O'Reilly Auto Parts 4-Wheel Jamboree Nationals for the finale of the Monster Truck Thunder Drags.