Boonton Gorge
gorge formed by the Rockaway River in Boonton, New Jersey

The Boonton Gorge is a river gorge in Boonton, New Jersey where the Rockaway River drops over several waterfalls, and travels for slightly over a mile before emptying into the Jersey City Reservoir.
Geology
The Rockaway River flows through flat plains of Denville and Boonton Township. At this point elevation is 480 feet (150 m) above sea level. The Rockaway River spills over a man-made dam that is six feet high in the town of Boonton. This is the beginning of the Boonton Gorge. This location is the Grace Lord Park at this point. This is where the Rockaway River begins its descent over the Ramapo Fault.
During the late Triassic Period when the North American Plate separated from the African Plate, an aborted rift system was created between the Ramapo Fault and a fault west of Paterson. A half graben was created and was filled with red bed sediment. The land between the Ramapo fault and the fault west of Paterson lowered, thus the Boonton Gorge was born.
This brief starts where responsible research should: with the source description of “Boonton Gorge” as gorge formed by the Rockaway River in Boonton, New Jersey. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the places & architecture register because the source frames it as gorge formed by the Rockaway River in Boonton, New Jersey. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Place names and jurisdictional language are key evidence: both can reveal earlier catalogue descriptions and overlooked record series. The source revision retrieved here is dated Jan 21, 2026. The linked authority identifier is Q4943714. Authority coordinates are 40.907, -74.418. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank.
Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Boonton Gorge”, its source revision and the description used here.
- Expand the search: follow Boonton Gorge primary sources, Boonton Gorge archive and Boonton research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Boonton Gorge”?
- What physical evidence or contemporary plan supports the description?
- Which authority defined the place, boundary or structure at the relevant date?
Search terms from this dossier
This entry incorporates text from “Boonton Gorge” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.