{
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    {
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          "claim_id": "claim-upper-lamarck-lake-geographic-reference",
          "evidence_id": "evidence-upper-lamarck-lake-geographic-reference",
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        }
      ],
      "observations": [
        {
          "artifact_refs": [],
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          "observation_id": "observation-usgs-geographic-names-bishop-lakes-20260925",
          "observed_at": null,
          "observer": "",
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          "publisher": "U.S. Geological Survey",
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      ]
    }
  ],
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    {
      "entity_id": "place-upper-lamarck-lake",
      "kind": "waterbody",
      "name": "Upper Lamarck Lake"
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  ],
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    {
      "action": "ADD",
      "change_set_id": "wp-20260925-bishop-creek-lamarck-treasure-depth",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/claims/claim-upper-lamarck-lake-geographic-reference.json",
      "reason": "Add source-backed Lamarck and Treasure Lakes topology, geometry, and day-hike distance results.",
      "record_id": "claim-upper-lamarck-lake-geographic-reference",
      "record_type": "claim",
      "summary": "Add connected Lamarck and Treasure Lakes route geometry and close the bounded Bishop Creek distance gap."
    }
  ],
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    "position": 3504,
    "previous_id": "claim-twin-bridges-tuolumne-published-profile",
    "total": 3965
  },
  "observations": [
    {
      "artifact_refs": [],
      "content": "The USGS Geographic Names service identifies Lower Lamarck Lake as feature 263027 at 37.217194631601274, -118.64269546315641; Upper Lamarck Lake as feature 268621 at 37.210308065833495, -118.65094909325705; and the Bishop Creek Treasure Lakes as feature 268392 at 37.142536635570956, -118.57273519703854. A second California Treasure Lakes feature exists elsewhere, so the Inyo County coordinate and official South Lake map context are retained to disambiguate this destination.",
      "observation_id": "observation-usgs-geographic-names-bishop-lakes-20260925",
      "observed_at": null,
      "observer": "",
      "retrieved_at": "2026-09-25T08:00:00+00:00",
      "source_id": "source-usgs-geographic-names-bishop-creek-20260924"
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}