The Oak Ridges Moraine is an ecologically important geological landform in the Mixedwood Plains of south-central Ontario, Canada. The moraine covers a geographic area of 1,900 square kilometres (730 sq mi) between Caledon and Rice Lake, near Peterborough. One of the most significant landforms in southern Ontario, the moraine gets its name from the rolling hills and river valleys extending 160 km (99 mi) east from the Niagara Escarpment to Rice Lake, formed 12,000 years ago by advancing and retreating glaciers during the last glaciation period. Below the approximately 200 metre thick glacial derived sediments of the moraine lies thick bedrock successions of Precambrian rocks and up to 200 metres of Ordovician aged rock, capped by a regional unconformity of erosion and non-deposition to the Quaternary period. Rivers and lakes scatter the landscape and are important for creating habitat for the rich diversity of species of animals, trees and shrubbery. These are also the supply of fresh water to aquifers in the moraine through complex subterranean connections. Construction development nearby, and with expansion of communities around the moraine in need of potable water, it is a contested site in Ontario, since it stands in the path of major urban development. Conservation of the moraine is thus an important step for keeping aquifers in a safe drinkable condition while also protecting the natural ecosystems surrounding and within the moraine. This region has been subject to multiple decades of scientific research to study the origins of formation, and how early communities used the land. A larger focus currently is how to source potable water without removing the aquifer entirely.
Steve Gilchrist is a former politician in Ontario, Canada. He was a Progressive Conservative member of the Legislative Assembly of Ontario from 1995 to 2003 and served as a cabinet minister in the government of Mike Harris.
Oak Ridges is an unincorporated community of Richmond Hill, Ontario, Canada, and has been part of the city since 1971. It forms the northern portion of the municipality's boundary, where it borders Aurora. Located about 20 km north of the northern border of Toronto and about 35 km from Downtown Toronto, it has a population of 18,520 (2016). The community developed around Lake Wilcox, the largest lake in the area, and has continued to expand slowly since its annexation by the Town of Richmond Hill. In the 1990s, Oak Ridges experienced moderate growth, which spurred environmental action by numerous organizations. Population has grown significantly as a result of development initiatives along Bayview Avenue. The Oak Ridges Community Centre was built and completed in June 2012 to accommodate community demand.
Pottageville is an unincorporated community located in northeastern King Township, in Ontario, Canada. It is near Schomberg. It is named for one of its early settlers, Edward Pottage.
The Oak Ridges Moraine is a geological landform that runs east-west across south central Ontario, Canada. It developed about 12,000 years ago, during the Wisconsin glaciation in North America. A complex ridge of sedimentary material, the moraine is known to have partially developed under water. The Niagara Escarpment played a key role in forming the moraine in that it acted as a dam for glacial meltwater trapped between it and two ice lobes.
The politics of the Oak Ridges Moraine in southern Ontario, Canada, have centred on the question of how to preserve this extensive natural resource that is increasingly threatened by human modification. Although preservation of the moraine was first suggested in the 1940s, and intermittently over the subsequent fifty years, it was not until 1991 that the issue achieved prominence in political discourse. For the ensuing decade, use of the moraine was hotly contested between the interests of local residents, developers and environmentalists.
Preliminary research on the hydrology of the Oak Ridges Moraine began in the 1970s, but a broader research effort including the impact of urban development on the aquifer system and Great Lakes water quality was established in 1993. The research locus is the Geological Survey of Canada and the University of Toronto Groundwater Research Group, though other groups have made substantial contributions to this project.
The Kishwaukee River, locally known as simply The Kish, is a 63.4-mile-long (102.0 km) river in the U.S. state of Illinois. It is a tributary of the Rock River and its name derives from the Potawatomi word for "river of the sycamore".
The Greenbelt is a protected area of green space, farmland, forests, wetlands, and watersheds, located in Southern Ontario, Canada. It surrounds a significant portion of the Golden Horseshoe.
The 3,848 acres (6.013 sq mi) Landels-Hill Big Creek Reserve located in the southern region of Big Sur, California is owned by the University of California Natural Reserve System. It is located off State Route 1 in 50 miles (80 km) south of Monterey and adjacent to the Big Creek State Marine Reserve and Big Creek State Marine Conservation Area. It is open only for approved research or educational purposes.
Cold Creek Conservation Area, usually referred simply as Cold Creek, is an ecologically diverse protected Area of Natural and Scientific Interest in south-central Ontario, Canada. The 190-hectare (470-acre) conservation area was opened on 20 June 1962 by Wilf Spooner and the Toronto and Region Conservation Authority. It is located on the western end of King Township, overlapping the Oak Ridges Moraine. The Government of Ontario Ministry of Natural Resources classifies the area as a provincially significant Area of Natural and Scientific Interest for its "provincially or regionally significant representative ecological features". The area was also a site classified for the International Biological Program. The Life Science area, known as Cold Creek Swamp, is composed of a swamp and forest.
There are numerous natural areas in King, a township in Ontario, Canada. These areas are zones officially designated by the Government of Ontario that are within the township and exhibit provincially or regionally significant features representative of the region. The list of zones is defined and maintained by the provincial Ministry of Natural Resources Natural Heritage Information Centre.
Lake Wilcox is a kettle lake in the Oak Ridges neighbourhood of Richmond Hill, Ontario, Canada. The lake measures 1.5 kilometers across and covers 55.6 hectares or 0.55 square kilometres, making it the largest kettle lake on the Oak Ridges Moraine. Lake Wilcox, Lake St. George and their associated wetlands form a "provincially significant wetland".
Happy Valley Forest is a 6.48 square kilometre provincially significant ecological area, classified as an Area of Natural and Scientific Interest by the Ontario Ministry of Natural Resources. It consists of an upland forest on steeply rolling topography, various wooded swamps, and minor wetland areas. A few small kettle ponds are also present.
The Oak Ridges Moraine Conservation Act, officially known as the Oak Ridges Moraine Conservation Act, 2001, is a conservation plan for land situated on or near the Oak Ridges Moraine in Ontario, Canada. The legislation was enacted by the Government of Ontario in 2001.
California Rangeland Trust is a conservation nonprofit organization founded in 1998. The Rangeland Trust claims to be the largest land trust in California, having conserved over 371,000 acres (1,500 km2) of rangeland on 90 ranches across 26 counties.
The Oak Ridges Moraine Foundation (ORMF) is a non-profit organization based in Newmarket, Ontario, Canada. It was founded in 2002 as a governing body dedicated to the enhancement and preservation of the Oak Ridges Moraine as a healthy and vibrant ecosystem.
Petticoat Creek is a stream in the cities of Pickering, Toronto and Markham in the Greater Toronto Area of Ontario, Canada. The creek is in the Great Lakes Basin, is a tributary of Lake Ontario, and falls under the auspices of the Toronto and Region Conservation Authority. Its watershed covers 26.77 square kilometres (10.34 sq mi), and the cumulative length of all its branches is 49 kilometres (30 mi). Land use in the watershed consists of 52% agricultural, 27% protected greenspace and 21% urban.
The Oro Moraine is a glacial moraine in Simcoe County, Ontario, Canada. The moraine covers 141 square kilometres (54 sq mi) north of Barrie, Ontario. The moraine drains into Georgian Bay on Lake Huron, and the smaller Lake Simcoe.
The Toronto waterway system comprises a series of natural and man-made watercourses in the Canadian city of Toronto. The city is dominated by a large river system spanning most of the city including the Don River, Etobicoke Creek, Highland Creek, Humber River, Mimico Creek and Rouge River.
