This was a branch line which serviced quarries near the boundary of Alpena and Presque Isle near Lake Huron.
| Station | MP from Tower | Notes |
| Alpena | 0.0 | |
| Rockport | ~9 | |
| End of rails | ||
Key: BB=Bascule Bridge | C=Coal | CS=Car Shop | D=Open > Day | DN=Open Day and night | DS=Dispatcher | DT=Double Main Track | EH=Engine house | F=Diesel Fuel | HI=Half Interlocked Crossing | I=Interlocked Crossing | J=Junction | LB=Lift bridge | N=Open at night | P=Passing Track w/40' car capacity | Q=Quarry | RH=Round house # stalls | RT=Railroad Resort | S=Scales | SB=Swing bridge | T=Turntable | TC=Telegraph call | W=Water | X=Crossing | Y=Wye | Yard=Yard
[REF] =
1923. The MPSC authorizes the extension of the Avery Branch, from the City of Alpena to an unincorporated village known as Rockport on Lake Huron, must north of the Presque Isle County line. [MPSC-1923]
1929. Permission to abandon its 12-mile Rockport branch in Alpena county was sought from the ICC today by the D&M railway. The line it seeks to abandon extends from the Avery branch to Rockport. The application said traffic is insufficient to operate the branch at a profit. [SJHP-1929-0209]
The following sources are utilized in this website. [SOURCE-YEAR-MMDD-PG]:
