Geneva 15.7%. Of the agricultural land, 0.3% is used for growing crops. Of the water in the municipality, 0.2% is composed of lakes and 2.9% is rivers and streams. The altitude of Geneva is , and corresponds to the altitude of the largest of the Pierres du Niton, two large rocks emerging from the lake which date from the last ice age. This rock was chosen by General Guillaume Henri Dufour as the reference point for surveying in Switzerland. The second main river of Geneva is the Arve, which flows into the Rhône just west of the city centre. Mont Blanc
Congress of Peace in Geneva Congress of Peace in Geneva In 1867, the French pacifist Charles Lemonnier (1806-1891) convened the Congress of Peace in Geneva, known as the "International League of Peace and Liberty". It was ultimately at this conference that it was decided to abolish the sovereignty and international relations of the Holy See, something which Pius IX blamed on secret societies. According to Jasper Ridley, at the 1867 Congress of Geneva, Garibaldi referred to "that pestilential institution which is called the Papacy" and proposed giving "the final blow to the monster". This was a reflection of the bitterness that had been generated by