prompton-lake
Prompton Lake is a feature on Lackawaxen River, Pennsylvania.
It is fishable.
Prompton Dam is the head of the tailwater (Perfect Fly: 'starts below Prompton Lake'); the main stem begins just south of the lake (Discover NEPA).
It is upstream of Sycamore Point.
Sourced from 2 sites.
Sources: discovernepa.com and The Perfect Fly Store.
Access, closures and rules change; check with the state agency before you go.