Note on this revision (Rev. 3). This edition replaces the 1:100,000 absolute-elevation scaling of Revs. 1–2 with a corrected datum model that resolves the scaling discrepancies those versions acknowledged. Measured from the terminal salt (Lake Abhe) rather than from sea level — exactly as the pyramid’s interior is measured from its base datum rather than from the plateau’s absolute elevation — the lacustrine sequence maps onto the chamber sequence at a single scale of approximately 1:33, with both systems independently exhibiting the same 2:1 vertical doubling to within ~3%. What Revs. 1–2 defended as “symbolic compression” is thereby superseded by metric fit. The revision further reinterprets the King’s Chamber coffer correspondence (§3.3), adds the antechamber and passage-junction correspondences (§4), and situates the geodetic model within the fourfold complementary-reading framework developed in the author’s companion preprints and monograph (Sennfelt 2026c, 2026d, 2026e). The testable prediction of Revs. 1–2 survives the correction unchanged: the corrected model rederives the predicted upper feature in the same +68–70 m window (§6).Abstract. This paper proposes that the interior of the Great Pyramid of Giza encodes a scaled geodetic model of the Awash River system in Ethiopia. Measured from a common hydrological zero — the terminal salt basin of Lake Abhe for the landscape, the base datum for the monument — the two principal lacustrine stations of the Awash corridor stand at elevations that map onto the two principal chamber floors at a single scale of approximately 1:33: Lake Basaka at ~707 m above the terminal salt answers the Queen’s Chamber floor at +21.3 m (1:33.3), and Lake Ziway at ~1,394 m answers the King’s Chamber floor at +43.0 m (1:32.4). Independently of the scale, both systems exhibit the same internal law: the upper freshwater station stands at twice the height of the mid-rift saline station, to within ~3% in the landscape and ~2% in the monument. The correspondence is reinforced by physically specific, nonnumerical parallels: the Queen’s Chamber’s documented evaporite incrustations against Lake Basaka’s hypersaline evaporite regime, together with a topological exactitude (of every water on the course, Basaka alone lies off the river, fed and drained underground; of every room on the walk, the Queen’s Chamber alone lies off the climb, its channels sealed); the King’s Chamber’s granite coffer against the Ark tradition of Tulu Gudo island in Lake Ziway (chest for chest, rather than the categorically weaker vessel-for-island reading of earlier revisions); the passage junction against the Awash’s great bend before the Tendaho–Aussa plain; and the portcullis antechamber against the volcanic cone of Mount Zuqualla, the guarded threshold between the ascent and the highland lake. The Subterranean Chamber corresponds to the terminal deep itself, with the drowned shield volcano Dama Ali — island-like at African Humid Period lake levels — standing within it, a referent preserved, the author suggests, in the underground-island tradition Herodotus recorded at Giza. The framework integrates with established Egyptian astronomical symbolism (Sirius-inundation nexus; Benben emergence) and is offered as one register of a fourfold complementary reading whose other registers are developed in companion studies. The falsifiable prediction of earlier revisions is rederived under the corrected model and retained: high-resolution muon tomography may reveal an undetected low-density feature at approximately +68–70 m above base datum, corresponding to the Ethiopian highland source region
Diogo Sennfelt (Wed,) studied this question.