Stopping places on the A84/A85

Harryt

I am travelling up to a CL North of Oban with the caravan, wife, dughter, granddaughter and dog from Kelso. We will stop at the Sttirling services but I suspec that we will need another one on the A84/A85. It is a long time since I have been up taht way
and never north of Killin wiht the caravan. ANy suggesttions for stopping places? Are there laybyes?

Thanks

Harry