Stony Plain, originally named Stonyplain, was a provincial electoral district in Alberta, Canada, mandated to return a single member to the Legislative Assembly of Alberta from 1905 to 2019. The district returned a single member to the Legislative Assembly of Alberta throughout its history, using the first past the post method of voting for most of its existence but single transferable vote from 1926 to 1957. The district was created in 1905 when Alberta became a province. The riding in its original boundaries stretched from the west Edmonton city limits to the British Columbia border, but over time it was significantly reduced in size. The riding was named Stonyplain from 1905 to 1909 before being changed to Stony Plain. History Stony Plain was founded as Stonyplain, one of the original 25 electoral districts contested in the 1905 Alberta general election upon Alberta joining Confederation in September 1905. It was renamed Stony Plain for the 1909 Alberta general election, retaining this name until its abolition. The original boundaries of the riding took it to the British Columbia from west Edmonton city limits, but over the next hundred years the riding was significantly decreased in area to a small fraction of its former size. The 2010 electoral boundary re-distribution saw the riding transfer land north of Alberta Highway 16 to the electoral district of Whitecourt-Ste. Anne. In the 2017 re-distribution, the riding was abolished, with the town of Stony Plain moved to Spruce Grove-Stony Plain and the rural areas transferred to Lac Ste. Anne-Parkland and Drayton Valley-Devon. The area continued to be represented in the Legislative Assembly until the 2019 election, when new riding borders took effect. Boundary history Electoral history The electoral district of Stony Plain was created when the province was first formed in 1905. It was one of the longest-surviving original districts, remaining intact for every boundary redistribution until 2017. The first election in 1905 saw a three-way battle which was handily won by Liberal candidate John McPherson, who was reelected in 1909. He was defeated by Conservative party candidate Conrad Weidenhammer in 1913, who chose to retire after a single term. Conservative Frederick Lundy won the tight 1917 race to hold the district. He ran again in the 1921 election, but was defeated by United Farmers candidate Willard Washburn in a landslide. Washburn held the district for two terms before retiring in 1930. The United Farmers ran candidate