capital of the Yukon Territory when the seat was moved from Dawson City after the construction of the Klondike Highway. On March 21, 1957, the name was officially changed from White Horse to Whitehorse. Geography Whitehorse is located at kilometre 1,425 (Historic Mile 918) of the Alaska Highway and is framed by three nearby mountains: Grey Mountain to the east, Mount Sumanik to the northwest and Golden Horn Mountain to the south. The rapids which were the namesake of the city have disappeared under Miles Canyon and Schwatka Lake, formed by the construction of a hydroelectricity dam in 1958. Whitehorse is currently the 64th largest city in Canada by area. The city limits present a near rectangular shape orientated in a NW-SE direction. Cityscape Whitehorse Bylaw 426 (1975) restricts the operation of motor vehicles to designated roadways in certain "Protected Areas" to ensure maximum conservation of the environmental quality. Most are near the downtown core (downtown and Yukon river escarpments, Mt. Mac ski trails, Riverdale, Valleyview, Hillcrest, Granger, Porter Creek, and Mountainview) and one, Pineridge, is south of downtown. In 1999, the city approved the Area Development Scheme (ADS) which reallocated the area previously known as "Whitehorse Copper" to the following uses: Country Residential, Commercial, Service Industrial, and Heavy industrial. Recent demands for growth have reignited urban planning debates in Whitehorse. In 1970 the Metropolitan Whitehorse development plan included park and greenbelt areas that were to be preserved to ensure high quality of life even within city limits. Climate Whitehorse has a subarctic climate (Köppen climate classification: Dfc) and lies in the rain shadow of the Coast Mountains, causing precipitation totals to be quite low year-round. Due to the city's location in the Whitehorse valley, the climate is milder than other comparable northern communities such as Yellowknife. With an average annual temperature of Whitehorse is the warmest place in the Yukon. The temperature measurements for the city are taken at the airport. The Whitehorse Riverdale weather station situated at a lower elevation than the airport is even warmer at . At this latitude winter days are short and summer days have just over 19 hours of daylight. Whitehorse has an average daily high of in July and average daily low of in January. The highest temperature ever recorded in Whitehorse was on 14 June 1969. The coldest temperature ever recorded was on 21 January 1906. Whitehorse has little precipitation, with