The Champ de Mars (Field of Mars) is a public park in the French city of Colmar in Alsace. It is located between the Place Rapp north and the buildings of the Haut-Rhin prefecture to the south. In 1745, on the site of today's park, there was a public promenade outside the city walls. It was named Le Vanolles in honor of the Alsatian director Barthélemy de Vanolles. It was mainly used for National Guard military exercises or for public ceremonies. In 1793 the park was renamed Champ de Mars. At the time of the First Empire (1804-1814), 193 linden trees were planted here. In 1808 the northern part was separated and has been known as Place Rapp since 1856.