Greater Hume Shire mayor Heather Wilton said the small community between Wymah and Jingellic had some unique challenges.

"It is in very hilly terrain, locked in by the (Murray River) to the south," she said.

"There is a small section of river flats almost that is just totally without proper communications.

"This 15km radius we anticipate will be serviced will go almost to Jingellic and not quite to Wymah."

Talmalmo was one of four sites chosen in the Farrer electorate in the federal government's fourth round of the mobile phone blackspot program.

Burrumbuttock had a tower constructed from the first round of the program.

"It is quite a remote location in our shire and I know the people down there will be equally happy and relieved to have this program in their neck of the woods," Cr Wilton said.

"The topography is totally different to here in Burrumbuttock."

The shire initially rejected a site chosen for the Burrumbuttock tower behind the town's hall before a compromise was reached for a spot on private property behind the Telstra exchange.

Farrer MP Sussan Ley said the mobile service coverage had been welcomed.

"I met someone recently who is working from here, has moved here particularly because this tower is here and they can run their home business with high-speed internet," she said.

Former NSW Farmers president Derek Schoen said communications was critical in remote locations like Talmalmo and Burrumbuttock.

"Connectivity means the ability to operate like everyone else does," he said.