Châtelat () was a municipality in the Jura bernois administrative district in the canton of Bern in Switzerland. It is located in the French-speaking Bernese Jura (Jura Bernois), however a majority of the residents in Châtelat are German speaking. On 1 January 2015 the former municipalities of Châtelat, Monible, Sornetan and Souboz merged to form the new municipality of Petit-Val. History Châtelat is first mentioned in 1335 as Schestellat. For most of the village's history, it belonged to the court and parish of Sornetan under the provost of Moutier-Grandval Abbey. Châtelat remained part of the parish after they both converted to the new faith during the Protestant Reformation in 1531. In the following years, a colony of Mennonites was established in the village of Moron on the slopes of the Moron mountain. Moron was located at the far end of the valley, at an elevation of and like many Mennonite settlements was in a poorly accessible location. After the 1797 French victory and the Treaty of Campo Formio, Châtelat became part of the French Département of Mont-Terrible. Three years later, in 1800 it became part of the Département of Haut-Rhin. After Napoleon's defeat and the Congress of Vienna, Châtelat was assigned to the Canton of Bern in 1815. During the period of French control, the village of Fornet-Dessous was an independent municipality. At some point after Bern assumed control, it was integrated into the Châtelat municipality. In 1829 the village of Fornet-Dessous was completely destroyed in a fire. Today, the village remains fairly rural and agrarian. About two-thirds of the workers work in the municipality and about two-thirds of the jobs in the municipality are in agriculture. Geography Before the merger, Châtelat had a total area of . As of 2012, a total of or 54.9% is used for agricultural purposes, while or 42.2% is forested. Of the rest of the land, or 2.7% is settled (buildings or roads), or 0.5% is either rivers or lakes. During the same year, housing and buildings made up 1.7% and transportation infrastructure made up 1.0%. Out of the forested land, 32.3% of the total land area is heavily forested and 9.9% is covered with orchards or small clusters of trees. Of the agricultural land, 2.2% is used for growing crops and 31.8% is pastures and 20.2% is used for alpine pastures. All the water in the municipality is flowing water. The former municipality