Answers: Mosquitoes, junkyard dogs and the group of South Jordan residents that goes by the acronym SOS (Save Open Space).

The question: What are three things that never give up?SOS has renewed its long-running campaign to block construction of the River-Park office complex by launching yet another initiative petition drive aimed at killing the project.

The ad hoc group filed a request with the city July 16 to have copies of its petitions prepared for circulation, but members already are gathering signatures.

Meantime, city officials have again denied the application, saying state law does not permit initiatives on individual zoning issues.

SOS officials are undaunted and say they will proceed with the drive anyway and will appeal the city's latest rejection of their application to the Utah Supreme Court.

Pending that decision, SOS hopes to get enough signatures to place the initiative on either a special election ballot or on the 1999 municipal election ballot.

An expanded version of an initiative petition that was rejected by city officials in March, the revised initiative asks local voters to compel the City Council to return the 25.5-acre Jordan River Park to state own-er-ship.

The council is considering a trade with RiverPark developer Gerald Anderson that would swap a 16-acre section of the park, which is still undeveloped, for an adjoining piece of land.

However, the state gave the property to South Jordan in 1983 with the stipulation it would revert to state ownership if it wasn't used for a park.

City officials have asked the Utah Parks and Recreation Board to consider approving a trade, which would give the city an additional three acres of land, but the proposal has been postponed pending appraisals.

SOS hopes to block the trade with the initiative, arguing the swap is heavily weighted in the developer's favor because it gives him eight more acres of more valuable "buildable" land.

The initiative also contains two amendments to the earlier version that was rejected by council mem-bers.

One amendment asks residents to require the council to re-rezone the 85-acre RiverPark office complex property from its current OS or office service use back to agricultural use.

Reverting back to the original agricultural zone would both block construction of the office park and ensure a legal battle between Anderson and the city.

The other amendment seeks a permanent moratorium on any construction of buildings or roads within the Jordan River's 500-year flood plan - which also would eliminate much of the buildable land within Anderson's project.

SOS member Brent Foutz of South Jordan said copies of the petition are already being circulated. "We need 1,209 signatures to place the initiative on a ballot," he said. "We're about halfway there."

Councilman Gary Chandler stressed South Jordan officials have not made any decision on a trade and are only exploring possible options.

The "buildable land" question raised by SOS is a non-issue, he said, because the park is zoned as open space and the city couldn't build anything on it anyway.

"In my mind, there's no question the other property would be worth more" than the land currently owned by the city, Chandler added. "It's in the same place . . . and there's more of it."