The gunboat did not reach her destination, the bridge over the Gunpowder River, until late on July 12.

She returned to Baltimore immediately to report on the bridge and to pick up arms and provisions for the vessels stationed in the Gunpowder River.

The town's post office is on the NCR Trail and the Gunpowder River.

During this latter term, a seven-mile tunnel was built to direct water from the Gunpowder River to Baltimore.

Investigators said the two cars were apparently on the same track and headed in the same direction, near a bridge over Gunpowder River.

Eastern Avenue itself continues northeast as a county highway to its end at Greenbank Road on the Gunpowder River.

Tubing trips along the Gunpowder River: A relaxing tubing trip down the river.

The town of Joppa on the Gunpowder River traded internationally in agricultural products, especially tobacco.

This first attempt to establish an English settlement on the Gunpowder River was apparently abandoned because it proved to be a poor location choice.

Joppa "mile wide harbor" on the Gunpowder River could accommodate the largest ocean-going ships of the day.