The phrase "at the uppermost" is correct and usable in written English.
It can be used to describe something that is situated at the highest point or level of a particular context.
Example: "The painting was displayed at the uppermost section of the gallery, drawing the attention of all visitors."
Alternatives: "at the highest point" or "at the topmost level".
At the uppermost part of the plate boundary, though, the figure was closer to a hundred feet.
The oil and gas migrate upward, becoming trapped against the shale at the uppermost part of such anticlinal formations.
At the uppermost strata were a dozen or so Ibatan whose education the Marees underwrote, led by Ruben and his wife, Miriam.
Glass ceiling panels have been installed in several places at the uppermost level in the statue's base, where one can peer up into the copper-clad interior.
Spike and Druscilla are also English, and are at the uppermost glamour end of the vampire scale; all American vamps are badly dressed.
It will be a people-watching paradise, with nooks and niches to sit and loiter in, and views framed across floors – along with a vertiginous new bridge slung across the Turbine Hall at the uppermost level.
But the survey revealed continuing gaps in the labor force, in wages, at the uppermost levels of business and in the rate of women's unemployment, which is twice that of men.
Yet, Pentagon officials acknowledge that this localized effort must be supported by a more senior-level, political decision by the Obama administration on how to deal with corruption at the uppermost echelons of the Afghan government.
After centrifugation at 12,000 g for 15 min at 4°C, the uppermost aqueous phase was aspirated and RNA precipitated from the aqueous solution using isopropanol.
Up to an annealing temperature of 600 °C the graded layer system remained stable, whereas after 1 h annealing in vacuum at 650 °C the uppermost layer completely delaminated, because the graphitisation in the lowest layer set in, thereby destroying its stress managing facility.
Yet geological information seems possible to interpret from the gamma log, because at least the uppermost 100 m of the sandstone might be subdivided into four sequences each having on average, a downward decreasing gamma radiation and a thickness of, respectively, 30, 30, 20, and 20 m.
