The southern end of the valley drains to the Raystown Branch Juniata River via Yellow Creek through Loysburg Gap, and the northern end drains to the Frankstown Branch, via Clover Creek.
Morrisons Cove is often mentioned as a landmark in early wills and records of importance.
Wills Creek Valley and Friend's Cove are also in this section of the state and were well known to the early settlers.
Near Henrietta, a three-hundred-foot (91 m) long chicken house was thrown a considerable distance before being destroyed.
The tornado dissipated about one mile (1.6 km) east of Martinsburg in the Clover Creek/Fredericksburg area where it downed several willow trees.