Mount Tagapo
mountain on the Talim lake island, Laguna de Bay, Philippines
Mount Tagapo, also known as Susong Dalaga, is a conical peak on the lake island of Talim on Laguna de Bay, the largest lake in the Philippines. The mountain ridge is 438 m (1,437 ft) in elevation and the highest point of Talim Island. The peak falls under the respective jurisdictions of the towns of Binangonan and Cardona in Rizal province, Calabarzon region.
Etymology
The name is derived from the Tagalog word tagâ, "to chop". The island's name, talím ("blade") may refer to its outline on maps, which looks like a short sword. The peak is also locally known as Bundók Susong Dalaga (literally, “mount maiden breast”), due to its conical shape.
Geography
The peak falls under the jurisdiction of the towns of Binangonan and Cardona, which divide the island almost into two halves, the west (Binangonan) and east (Cardona). In the middle of the 15-kilometre (9.3 mi) long Talim Island island is a volcanic ridge with Mount Tagapo, its highest peak. The island forms the southwestern rim of the Laguna Caldera, a large caldera that occupies the middle section of Laguna de Bay. Mount Sembrano range, across the lake on the Jalajala Peninsula, forms the eastern and the highest peak of the caldera.
Begin with the source’s own compact description: “Mount Tagapo” is mountain on the Talim lake island, Laguna de Bay, Philippines. The dossier treats that line as a proposition to test through Mount, Tagapo and mountain, not as a finished interpretation.
Why this record matters
The phrase “mountain on the Talim lake island, Laguna de Bay, Philippines” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Maps, plans, fabric surveys and administrative records can establish how the site’s name, extent and function changed over time. The source revision retrieved here is dated Aug 15, 2026. The linked authority identifier is Q16935423. Authority coordinates are 14.333, 121.233. 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 source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
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This entry incorporates text from “Mount Tagapo” 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.