Three Mile Lake is located in the geographic township of Watt in the Township of Muskoka Lakes. Access to Three Mile Lake may be gained via District Rd. #4 to the south or Hwy #141 to the north. Three Mile Lake flows into the main basin of Lake Rosseau by way of the Dee River and Clarke Pond.
Muskoka's Lake System Health monitoring program includes tests for Secchi depth (a measure of water clarity) , phosphorus concentrations (a measure of nutrient enrichment), dissolved oxygen and temperature.
Learn more about Monitoring Parameters
The data collected for each sample site is summarized in a Lake Data Sheet. The Interpretation of Water Quality Data document explains the information contained in the Lake Data Sheet.
For sampling methodology, please see the annual Lake System Health Monitoring Program report, which is available on the District Municipality of Muskoka website.
Muskoka Web Map - Sample Points
Three Mile Lake - Hammel's Bay (coordinates: 45.1874 -79.466)
Three Mile Lake - Main (coordinates: 45.1735 -79.4335)Sample Point Locations
Shoreline Land Use Surveys collect data on shoreline vegetation, shoreline structures and the first 20 metres of land surrounding a waterbody. This information is then mapped and provided to lake associations, Area Municipalities and other interested parties for planning purposes.
Three Mile Lake Shoreline Land Use Survey
2006 2015
A Biological Monitoring Program is available for lake associations interested in becoming more involved in lake monitoring and broader lake planning. Muskoka's Biological Monitoring Technician is available to train lake residents to undertake volunteer monitoring programs that are based on standard protocols such as plantwatch, frogwatch, forest health and benthic analysis. Ongoing support is provided to meet the needs of individual associations.
The Biological Monitoring Program focuses on EMAN's benthic and terrestrial plot protocols, which helped supplement the existing lake monitoring and shoreline land use data.
Please contact us for more information about the Biological Monitoring program and how you can get involved.
The benthic macro-invertebrate sampling protocol requires the collection and classification of macro-invertebrates from a variety of developed and undeveloped sites of the near shore environment. The program pilots the standard protocol for benthic analysis developed by the Ontario Benthos Biomonitoring Network and spearheaded by the Ministry of the Environment through the Dorset Environmental Science Centre.
Terrestrial forest plots require the establishment of a 20-metre by 20-metre permanent plot. All the trees are then identified, tagged and classified according to health. Monitoring is done on a yearly basis within the plot. Various other aspects of forest health can also be monitored within the standard plot, including decay rates, tree regeneration, lichen diversity, and salamander occurrence.
Terrestrial forest plots are established and monitored based on the protocol developed by EMAN.
Three Mile Lake Terrestrial Plot Data
Lake Joseph is located to the west of Lake Rosseau in the central area of Muskoka. Like Lake Rosseau, Lake Joseph also extends into Seguin Township in Parry Sound District. Access may be gained to Lake Joseph via Hwy #69 and #632 as well as Muskoka Roads #7 and #169. Lake Joseph drains into Lake Rosseau by way of the Joseph River and also via the Port Sandfield “cut” located at Cox Bay.
Muskoka's Lake System Health monitoring program includes tests for Secchi depth (a measure of water clarity), phosphorus concentrations (a measure of nutrient enrichment), dissolved oxygen and temperature.
Learn more about Monitoring Parameters
The data collected for each sample site is summarized in a Lake Data Sheet. The Interpretation of Water Quality Data document explains the information contained in the Lake Data Sheet.
For sampling methodology, please see the annual Lake System Health Monitoring Program report, which is available on the District Municipality of Muskoka website.
Muskoka Web Map: Sample Points
Cox Bay Lake Data Sheet (coordinates: 45.1092 -79.6192)
Hamer Bay Lake Data Sheet (coordinates: 45.2225 -79.7738)
Joseph River Lake Data Sheet (coordinates: 45.1504 -79.6688)
Little Lake Joseph Lake Data Sheet (coordinates: 45.2054 -79.6858)
Main Basin Lake Data Sheet (coordinates: 45.1979 -79.7504)
North Basin Lake Data Sheet (coordinates: 45.2348 -79.7562)
South Basin Lake Data Sheet (coordinates: 45.1499 -79.7171)
Shoreline Land Use Surveys collect data on shoreline vegetation, shoreline structures and the first 20 metres of land surrounding a waterbody. This information is then mapped and provided to lake associations, Area Municipalities and other interested parties for planning purposes.
A Biological Monitoring Program is available for lake associations interested in becoming more involved in lake monitoring and broader lake planning. Muskoka's Biological Monitoring Technician is available to train lake residents to undertake volunteer monitoring programs that are based on standard protocols such as plantwatch, frogwatch, forest health and benthic analysis. Ongoing support is provided to meet the needs of individual associations.
The Biological Monitoring Program focuses on EMAN's benthic and terrestrial plot protocols, which helped supplement the existing lake monitoring and shoreline land use data.
Please contact us for more information about the Biological Monitoring program and how you can get involved.
The benthic macro-invertebrate sampling protocol requires the collection and classification of macro-invertebrates from a variety of developed and undeveloped sites of the near shore environment. The program pilots the standard protocol for benthic analysis developed by the Ontario Benthos Biomonitoring Network and spearheaded by the Ministry of the Environment through the Dorset Environmental Science Centre.
Download the Benthic Aquatic Invertebrate Information Sheet to interpret the data contained in the Benthic Data Sheet below.
Lake Joseph Aquatic Invertebrate Data Sheet
Terrestrial forest plots require the establishment of a 20-metre by 20-metre permanent plot. All the trees are then identified, tagged and classified according to health. Monitoring is done on a yearly basis within the plot. Various other aspects of forest health can also be monitored within the standard plot, including decay rates, tree regeneration, lichen diversity, and salamander occurrence.
Terrestrial forest plots are established and monitored based on the protocol developed by EMAN.
Lake Muskoka is centrally located within the District of Muskoka with many significant areas located on and around its shores. Some of these areas include a gullery on Eleanor Island in the southern basin in addition to deer wintering yards along the northwestern shores. Hardy Lake Provincial Park is located on the northeastern shore as well as the Torrance Barrens which are situated nearby.
Muskoka's Lake System Health monitoring program includes tests for Secchi depth (a measure of water clarity), phosphorus concentrations (a measure of nutrient enrichment), dissolved oxygen and temperature.
Learn more about Monitoring Parameters
The data collected for each sample site is summarized in a Lake Data Sheet. The Interpretation of Water Quality Data document explains the information contained in the Lake Data Sheet.
For sampling methodology, please see the annual Lake System Health Monitoring Program report, which is available on the District Municipality of Muskoka website.
Muskoka Web Map: Sample Points
Bala Bay Lake Data Sheet (coordinates: 45.0067 -79.6008)
Boyd Bay Lake Data Sheet (coordinates: 45.050277 -79.400833)
Dudley Bay Lake Data Sheet (coordinates: 45.0425 -79.6132)
Main Basin Lake Data Sheet (coordinates: 45.0682 -79.5156)
Muskoka Bay Lake Data Sheet (coordinates: 44.9259 -79.3979)
Whiteside Bay Lake Data Sheet (coordinates: 45.0605 -79.6155)
Shoreline Land Use Surveys collect data on shoreline vegetation, shoreline structures and the first 20 metres of land surrounding a waterbody. This information is then mapped and provided to lake associations, Area Municipalities and other interested parties for planning purposes.
Muskoka Bay Shoreline Land Use Survey 2007 2017
Muskoka River (confluence to mouth) Shoreline Land Use Survey
A Biological Monitoring Program is available for lake associations interested in becoming more involved in lake monitoring and broader lake planning. Muskoka's Biological Monitoring Technician is available to train lake residents to undertake volunteer monitoring programs that are based on standard protocols such as plantwatch, frogwatch, forest health and benthic analysis. Ongoing support is provided to meet the needs of individual associations.
The Biological Monitoring Program focuses on EMAN's benthic and terrestrial plot protocols, which helped supplement the existing lake monitoring and shoreline land use data.
Please contact us for more information about the Biological Monitoring program and how you can get involved.
The benthic macro-invertebrate sampling protocol requires the collection and classification of macro-invertebrates from a variety of developed and undeveloped sites of the near shore environment. The program pilots the standard protocol for benthic analysis developed by the Ontario Benthos Biomonitoring Network and spearheaded by the Ministry of the Environment through the Dorset Environmental Science Centre.
Download the Benthic Aquatic Invertebrate Information Sheet to interpret the data contained in the Benthic Data Sheet below.
Lake Muskoka Aquatic Invertebrate Data Sheet
Terrestrial forest plots require the establishment of a 20-metre by 20-metre permanent plot. All the trees are then identified, tagged and classified according to health. Monitoring is done on a yearly basis within the plot. Various other aspects of forest health can also be monitored within the standard plot, including decay rates, tree regeneration, lichen diversity, and salamander occurrence.
Terrestrial forest plots are established and monitored based on the protocol developed by EMAN.
Grandview Lake is located in the geographic townships of McLean and Ridout within the Township of Lake of Bays. Grandview Lake is situated north of District Rd 117 east of the Town of Baysville. It flows into the South Muskoka River Bay of Lake of Bays via Echo Lake.
Muskoka's Lake System Health monitoring program includes tests for Secchi depth (a measure of water clarity), phosphorus concentrations (a measure of nutrient enrichment), dissolved oxygen and temperature.
Learn more about Monitoring Parameters
The data collected for each sample site is summarized in a Lake Data Sheet. The Interpretation of Water Quality Data document explains the information contained in the Lake Data Sheet.
For sampling methodology, please see the annual Lake System Health Monitoring Program report, which is available on the District Municipality of Muskoka website.
Muskoka Web Map: Sample Point
Grandview Lake Data Sheet (coordinates: 45.1992 -79.052)
Shoreline Land Use Surveys collect data on shoreline vegetation, shoreline structures and the first 20 metres of land surrounding a waterbody. This information is then mapped and provided to lake associations, Area Municipalities and other interested parties for planning purposes.
No Shoreline Land Use Survey has been completed for Grandview Lake.
A Biological Monitoring Program is available for lake associations interested in becoming more involved in lake monitoring and broader lake planning. Muskoka's Biological Monitoring Technician is available to train lake residents to undertake volunteer monitoring programs that are based on standard protocols such as plantwatch, frogwatch, forest health and benthic analysis. Ongoing support is provided to meet the needs of individual associations.
The Biological Monitoring Program focuses on EMAN's benthic and terrestrial plot protocols, which helped supplement the existing lake monitoring and shoreline land use data.
Please contact us for more information about the Biological Monitoring program and how you can get involved.
The benthic macro-invertebrate sampling protocol requires the collection and classification of macro-invertebrates from a variety of developed and undeveloped sites of the near shore environment. The program pilots the standard protocol for benthic analysis developed by the Ontario Benthos Biomonitoring Network and spearheaded by the Ministry of the Environment through the Dorset Environmental Science Centre.
Terrestrial forest plots require the establishment of a 20-metre by 20-metre permanent plot. All the trees are then identified, tagged and classified according to health. Monitoring is done on a yearly basis within the plot. Various other aspects of forest health can also be monitored within the standard plot, including decay rates, tree regeneration, lichen diversity, and salamander occurrence.
Terrestrial forest plots are established and monitored based on the protocol developed by EMAN.
Lake Rosseau is located in the north central area of Muskoka and the north portion of the lake extends into the Township of Humphrey in Parry Sound District. Access may be gained to Lake Rosseau via Muskoka Roads 4, 7, 25, 27 & 28, as well as Hwy #141. Lake Rosseau drains into Lake Muskoka by way of the Indian River at its southern most point at the Village of Port Carling.
Muskoka's Lake System Health monitoring program includes tests for Secchi depth (a measure of water clarity), phosphorus concentrations (a measure of nutrient enrichment), dissolved oxygen and temperature.
Learn more about Monitoring Parameters
The data collected for each sample site is summarized in a Lake Data Sheet. The Interpretation of Water Quality Data document explains the information contained in the Lake Data Sheet.
For sampling methodology, please see the annual Lake System Health Monitoring Program report, which is available on the District Municipality of Muskoka website.
Muskoka Web Map: Sample Points
Brackenrig Bay Lake Data Sheet (coordinates: 45.1179 -79.5273)
East Portage Bay Lake Data Sheet (coordinates: 45.1538 -79.5262)
Main Basin Lake Data Sheet (coordinates: 45.1505 -79.6103)
North Basin Lake Data Sheet (coordinates: 45.2236 -79.6129)
Skeleton Bay Lake Data Sheet (coordinates: 45.2163 -79.5675)
Wallace Bay Lake Data Sheet (coordinates: 45.1619 -79.6420)
Shoreline Land Use Surveys collect data on shoreline vegetation, shoreline structures and the first 20 metres of land surrounding a waterbody. This information is then mapped and provided to lake associations, Area Municipalities and other interested parties for planning purposes.
Brackenrig Bay Shoreline Land Use Survey 2007 2017
East Portage Bay Shoreline Land Use Survey
A Biological Monitoring Program is available for lake associations interested in becoming more involved in lake monitoring and broader lake planning. Muskoka's Biological Monitoring Technician is available to train lake residents to undertake volunteer monitoring programs that are based on standard protocols such as plantwatch, frogwatch, forest health and benthic analysis. Ongoing support is provided to meet the needs of individual associations.
The Biological Monitoring Program focuses on EMAN's benthic and terrestrial plot protocols, which helped supplement the existing lake monitoring and shoreline land use data.
Please contact us for more information about the Biological Monitoring program and how you can get involved.
The benthic macro-invertebrate sampling protocol requires the collection and classification of macro-invertebrates from a variety of developed and undeveloped sites of the near shore environment. The program pilots the standard protocol for benthic analysis developed by the Ontario Benthos Biomonitoring Network and spearheaded by the Ministry of the Environment through the Dorset Environmental Science Centre.
Download the Benthic Aquatic Invertebrate Information Sheet to interpret the data contained in the Benthic Data Sheets below.
Brackenrig Bay Aquatic Invertebrate Data Sheet
East Portage Bay Aquatic Invertebrate Data Sheet
Tobin Island Aquatic Invertebrate Data Sheet
Terrestrial forest plots require the establishment of a 20-metre by 20-metre permanent plot. All the trees are then identified, tagged and classified according to health. Monitoring is done on a yearly basis within the plot. Various other aspects of forest health can also be monitored within the standard plot, including decay rates, tree regeneration, lichen diversity, and salamander occurrence.
Terrestrial forest plots are established and monitored based on the protocol developed by EMAN.
Recreational Water Quality
Muskoka has monitored water quality for almost 30 years.
Lake Data Sheets
How is the water quality in your lake?
Shoreline Land Use Surveys
How much of the shoreline on your lake is natural?
Biological Monitoring Data
Benthic and terrestrial plot monitoring data.