Placer Lake Classification - 50k Distributed from GeoYukon by the Government of Yukon . Discover more digital map data and interactive maps from Yukon's digital map data collection. For more information: geomatics.help@yukon.ca

​The aquatic ecosystem classification (AEC) is a science-based tool that groups and classifies Ontario’s rivers and streams based on their: * physical attributes, such as water temperature * watershed characteristics, such as upstream drainage area The Ministry of Natural Resources and Forestry (MNRF) is responsible for sustainably managing and deriving economic benefit from the fisheries and water resources in the 490,000 km of Ontario’s rivers and streams. The AEC reduces the complexity of these vast aquatic networks using consistent and quantitative methods to build a standardized data foundation that helps MNRF staff with landscape level planning and policy development.

Ecoregion - Seven New Brunswick Ecoregions delineate areas that are different with regard to climate (precipitation and temperature), based principally on elevation above sea level and marine influences. Ecodistrict - Ecodistricts are nested subdivisions of Ecoregions based on geomorphologic and lithologic differences. The correct way to quote an ecodistrict number is to quote both its ecoregion and ecodistrict numbers, separated by a dash, e.g.: 2-1 denotes the Upsalquitch Ecodistrict in the Northern Uplands Ecoregion. Ecosection - Ecosections are nested subdivisions of Ecoregions based on topographic and relief differences. The correct way to quote an ecosection number is to quote its ecoregion, ecodistrict, and ecosection numbers, each separated by a dash, e.g.: 2-1-3 denotes Ecosection 3 of the Upsalquitch Ecodistrict in the Northern Uplands Ecoregion. Ecosite - Ecosites capture individual landforms that in theory outline a single forest ecosystem type at the 1:50,000 mapping scale. They are more-or-less uniform with regard soil moisture regime, soil nutrient regime, and topoclimate. Within ecoregions, each ecosite may be presumed to have similar vegetation potential in terms of native species composition, forest cover type, and timber growth rate (although the situation on the ground often deviates from what is mapped due to mapping imprecision and/or vegetation disturbance). To most narrowly describe an ecosite’s landscape context, the correct way to label it is to quote its ecoregion, ecodistrict, ecosection, and ecosite numbers, each separated by a dash, e.g.: 2-1-3-7 denotes Ecosite 7 in Ecosection 3 of the Upsalquitch Ecodistrict (1) in the Northern Uplands Ecoregion (2). For more information, see Department of Natural Resources 2007. Our landscape heritage [electronic resource] : the story of ecological land classification in New Brunswick. General editor: Vincent F. Zelazny. -- 2nd ed.

Created for distribution by the GeoYukon application as a comprehensive resource for all publicly available Mining information in the Yukon government. This data may be used directly by other applications to dynamically display Yukon data; however, it may be subject to change as data sets are updated or added