LIVERMORE – So you’re too young to have attended the Woodstock Festival in 1969 and you’ve always wondered what it was like. Or you were at the original show but the memory is hazy and you’d like to give it another go.

Aug. 9 in Livermore might be the best chance you’ll get. On that date, at least a half-dozen of the original Woodstock bands or remnants will again assemble in one place.

It’s not just the music that will be familiar. Consider the setting.

In 1969, Woodstock was held in wide-open fields on a farm in a tiny rural town. This year, the Heroes of Woodstock Concert will be held in wide-open fields at the Barnyard All Terrain Park at Route 108 and River Road in Livermore.

“It’s a 400-acre farm, basically,” said concert promoter Mike Shea. “This is going to be a real look at what Woodstock was like.”

The Aug. 9 show will fall between the July Sand Drag and the Autumn Mud Classic. For an afternoon and evening, the roar of monster trucks and the buzz of motocross bikes will be replaced by rock ‘n’ roll blasts from the past.

Behold the list of bands scheduled to perform:

• Jefferson Starship; the former Jefferson Airplane will no doubt send the haunting tones of “White Rabbit” floating across the farmland like it did 40 years ago in Bethel, N.Y. Don’t expect to see Grace Slick.

• Canned Heat, singing in their bluesy way about “Going up the Country” and getting “On the Road Again.”

• Ten Years After, who, at the time of the original Woodstock, had not yet released their greatest hit, “Change the World.”

• Big Brother & the Holding Co., another psychedelic San Francisco band best known for featuring Janis Joplin as its lead singer. Expect “Down on Me” to blast across the park.

• Tom Constanten, the former keyboardist for the Grateful Dead who also played with Jefferson Starship.

The event is being held on the anniversary of the death of one of rock ‘n’ roll’s most enduring icons: Jerry Garcia died on Aug. 9, 1995. It will be hosted by Country Joe McDonald, known in rock circles as the man behind Country Joe and the Fish, they of the anti-war “I-Feel-Like-I’m-Fixin’-to-Die Rag.”

In excess of 200,000 bodies writhed and gyrated at the original Woodstock. Shea is expecting a more modest turnout at the August event. He would not be surprised to see 20,000 people show up to experience something nostalgic or new.

Perhaps joining the sounds of the ’60s will be the ka-ching of cash registers.

“If we have 20,000 people, every business in the area is going to benefit,” Shea said. “It’s going to be a win-win-win situation if you really look at it.”

Not that it’s been easy.

Shea first envisioned the event a year ago. He enticed the Heroes of Woodstock bands to come to Livermore even though they are playing much bigger locations, such as Foxwoods in Connecticut, Times Square in New York and the site of the original Woodstock in Bethel, N.Y.

Once the bands were signed on, Shea approached the David Lovewell family and secured the Barnyard All Terrain Park as the venue.

More deja vu from the original Woodstock.

Before it was home to big bikes, fast cars and monster trucks, the Lovewell property was a dairy farm, in business since 1862. But near the turn of this century, profits from farming were not so grand.

In 2005 the Lovewells built a two-lane, 180-foot-long, mud-run track. The all-terrain park was born and it was thriving, but larger uses for the land had not yet been considered.

“They’d never done any concerts before,” Shea said. “Now they’re starting to get sponsors that they didn’t have.”

Next, town permission was required before Shea could present a rock show at the facility. In March, Planning Board members unanimously approved amendments to the Lovewells’ application to allow night hours, alcohol on premises and a permanent stage and lighting.

The amendments allow extended hours, including evenings, and on-premise alcohol sales and consumption. Liquor at the Woodstock show will be confined to a beer tent.

There were details to be worked out on matters such as portable toilets to accommodate that many people and trash removal once the event is over. And there was the possibility of heavy traffic if the lure of Woodstock rock proves really big.

Property on River Road across from the park is used to handle overflow parking at the site – making room for all those cars, trucks and VW vans with painted peace signs should not be a problem. Shea said he has made arrangements with local and state police to handle traffic, fire officials to observe for safety and has even ensured that there is space to serve as a helicopter pad should one become necessary.

Shea has a special interest in seeing that the event is well-managed: He foresees getting other music acts to play at the all-terrain park. In optimistic moments, he believes Phish or remnants of the Grateful Dead might play there.

“This,” he said of the Heroes of Woodstock Concert, “will be the first of many.”

A percentage of the proceeds from the concert will be given to Hope Haven Gospel Mission in Lewiston, which has suffered cuts in funding, Shea said.

The show is being held on a Sunday in part to discourage camping. If nearby property owners want to provide space for tents, they can do so and make a few bucks, Shea said. He does not want to rile the neighbors or create an atmosphere in which future musical acts are opposed.

“It’s going to be real professional,” Shea said. “It’s going to be a memorable experience for all of Maine.”

Livermore Selectperson John Wakefield said the town saw no reason to deny the Lovewells the permits they sought. There have been no complaints about activity at the Barnyard and no problems are anticipated. He agreed with Shea: a big show with a big audience could mean a boost for the town.

And hey, it’s Woodstock.

“I’m not into that myself,” Wakefield said. “But a lot of people are.”

Ten minutes later, after more talk about the musical acts and the nostalgia they would bring, Wakefield was warming more to the idea.

“I’m kind of an aging hippie myself,” he said. “I might have to change my mind and go down there.”

What: Heroes of Woodstock Concert

When: Sunday, Aug. 9

Where: Barnyard All Terrain Park, Route 108, Livermore

Who: Jefferson Starship, Canned Heat, Ten Years After, Big Brother & the Holding Co., Tom Constanten

Tickets: Online at Mainetix.net or at Bull Moose Music locations, Franchetti’s Home Town Variety in Jay, BrokeDown Palace Smoke Shop in Rumford and Little Dan’s BBQ in Lewiston.

Prices: From $50 for general admission up to $200 for reserved seating and an invitation to mingle at a private jam to pay tribute to Garcia.