Three Mile Lake is located in the Town of Gravenhurst, east of Hwy 11 and South of District Road 6. Three Mile Lake is centrally located in the Kahshe Lake watershed with Sunny Lake upstream and Kahshe Lake downstream. Three Mile Lake can be accessed via Sam Cooke Rd from District Rd 6.
Average traveling time from the GTA to Three Mile Lake - (Gravenhurst) is 1 hour 51 mins
| Three Mile Lake Size (median 84 ha) | 77 ha (190 Acres) |
|---|---|
| Three Mile Lake max Depth | 17 m (56 ft) |
| Three Mile Lake median Depth | 7.00 m (23 ft) |
| Three Mile Lake Perimeter | 10.00 km (6.21 Miles) |
| Three Mile Lake Island/s Perimeter | 1.00 km (0.62 Miles) |
| Three Mile Lake Altitude (median 290 m) | 252 m (827 ft) |
| Three Mile Lake is in the District of | Muskoka |
| Three Mile Lake is in the Municipality of | Gravenhurst |
| Three Mile Lake is in the Township of | Morrison |
| Local Name | 3 Mile Lake |
| Percentage of Shoreline which is wetland (median 9 %) | 13 % |
| Drainage Basin | Kahshe River |
| Phosphorus content in water (median 8.50 ug/L) | 10.50 ug/L |
| Watershed Area feeding the Lake (excluding lake) | 5.8 km2 (1433 acres) |
| Lake Trout found in Lake | No |
| Water Clarity (median 3.20 m) | 5.20 m (17ft) |
| Percentage of Shoreline which is Crown Land | 67 % |
| Shoreline Development | low; shoreline residential, recreation camp |
| Public Access to Three Mile Lake | public; via Sam Cook Road |
| Water Level Management | not regulated |
| Major Fish Species in Three Mile Lake | muskellunge, (I 1945), (I, 2012), |
| Other Fish Species in Three Mile Lake | , , cisco, , golden shiner, blacknose shiner |
| MNR Fact Sheet for Three Mile Lake - (Gravenhurst) | |
| MNR Data Sheet for Three Mile Lake - (Gravenhurst) | |
| Notes: E: extirpated, I: introduced – intentional or accidental, O: occasional, R: remnant, S: currently stocked, ?: status uncertain, 2009: year of first record or introduction if known, blank: presumed native | |
| Much of the above data for Three Mile Lake is compliments of the Muskoka Water Web maintained by The District Municipality of Muskoka | |
