The mountainous state dominated by the Rocky Montains with the capital Helena lies in the northwest of the United States, There is none as AVA defined area. Due to the adverse climatic conditions such as cold air intakes and blizzards and the relatively short growing season are mainly French hybrids and American vines grown. These include La Crosse. Frontenac. Leon Millot. Maréchal Foch. St. Croix. St. Pepin and Swenson Red, International varieties are Cabernet Sauvignon. Chardonnay. Merlot. Pinot Noir. Riesling and Sauvignon Blanc, In addition, grapes are also made California. Oregon and Washington processed. Well-known wineries are Lolo Peak Winery and Mission Mountain Winery.