The county's public transportation system will roll to a stop on Oct. 15 unless the board of directors can find a way to remain solvent in the face of massive budget cuts, said executive director Linda Boyer.
Agency vans provide subsidized rides for those who request them.
Seniors pay $1 each way and are often taken to local senior centers.
A fare of $2 within one town and more for cross-county travel is part of the public service.
"We'll be here until the last dollar," said Mrs. Boyer, who is starting a button-selling campaign.
"If every resident of Carroll County buys a button for $1, it would solve the problem this year," she said.
But Mrs. Boyer acknowledged that the board will need a long-term solution.