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[geological section]

[above sketch:] (W) | Ville de S. Rosa Nueva.– 2614 ft. (Miers) | 3000 ft assumed | Scale p. 81 of M.S.  | Shorten this 2 or 4 miles & add to other side | ? | (E) Miers says peak 1500 bar (V Pentland) | 12,454 Pentland | Peak supposed 13000 13500 ft: | Cumbre | A | On N. side R. Cuevas has removed this mass. | B | Near Paramillo de las Cuevas | (widen this on the miles) | Puente del Inca All this ought to be lower as I speak of the P. del Inca being so lofty ((Distant mountains broken lines)) |A (E) | (W) | Plain of Uspalatta | (45) (70) | P | P del Inca 8650 ft Parish | Pa | Introduce faults & make ∠s unequal fr 10 to 45º | 25º Some at 70º | Undulatory | (Q) |  500 ft above, shorten?  | Cap of colour strata 8000 9000 ft. (Say) Miers says summit several leagues wide | 25 Steeper for Los Hornillos 25º | Higher more [undulating]. | Surrounding mountains several thousand feet above sea | say 2500 2000 ft or say 6500 | 20 to 30 | Villa Vicencio | 5380 5328 above sea!!! Miers |? 4000 ft See Miers W | 3500 | (E) [in sketch:] 45 to 50º  (Thickness of Uspallata beds several thousand feet say, 5000 ft.)

[in sketch:] 2000 ft | D| Red | Porphry | Colour | Narrow

[below sketch:] Guerdia Vieja | Casucha de Juncanillo | (W) Descent very rapid at first | (broarder) A | B (red & purple bands) (C) D E | All this base ought to be sandstone | Porphry | Puente del Inca | J This purple ought to be red, with some more bands of purple, representing the subaquous base | Casa de Pujios | L | (Rio Tupungato) | M  (3) | Porphry (Almost vertical eastward) | Stet smaller | Bring up the west dip nearer Say 3 miles in Uspallata & also at the plain (R) | [SW] | Cleavage | (S)x make these outer mountains much wider

[to lower inset sketch of peak, all in black ink:] Real elevation of peak, in proportion to base

[colour key:] Granite & syenite greenstone | Porphry | Porph: breccia | Red sandstone & gypsum | Clay slate & greywacke | Lava & sedimentary beds

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