Cst. Ted Munro of the Lunenburg County RCMP said Olive Moore was hit by a minivan as it was driving away in the Pleasantville area of Lunenburg County near 12 p.m. on Jan. 19.
The 30-year-old woman who was driving the van — identified as the girl's mother in her obituary, Candice Roxanne Moore — was later arrested at the hospital but was released from custody shortly after.
Moore is charged with impaired driving causing death and refusing to comply with a breath demand.
She will appear in Bridgewater Provincial Court on Mar. 27.
Munro said the girl was heading to a relative's house on Corkum Road in Pleasantville but the driveway at that house was impassable. Munro said Moore then pulled off onto a side road near the house and the girl was to walk back.
Munro said as Moore was pulling away, the girl was struck.
He said three of the girl's siblings were with Moore in the minivan at the time of the accident.