Lake Titicaca's 'impossible' horizon — the Puno surveyors' report from 1878

High altitude lakes are interesting for this stuff because the atmospheric refraction issue (the globe defenders' forever-escape-hatch) is supposedly less of a factor at altitude. Lake Titicaca sits at 3,812 meters. Almost no humidity. Very stable air. In 1878 a Peruvian government survey team was m……