Katchewanooka Lake is one of the Kawartha lakes in south-central Ontario

Ontario

Ontario is a province of Canada, located in east-central Canada. It is Canada's most populous province and second largest in total area. It is home to the nation's most populous city, Toronto, and the nation's capital, Ottawa....

, Canada

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

. It is about 5 miles long and a half mile wide. The Trent Severn Waterway flows through Lake Katchewanooka into the Otonabee River

Otonabee River

The Otonabee River is a river that runs from Katchewanooka Lake near Lakefield, into the east side of Peterborough, Ontario , through Little Lake and down 30 km into the northwestern side of Rice Lake...

 at its outlet just north of Lakefield, continuing southwest through Peterborough

Peterborough, Ontario

Peterborough is a city on the Otonabee River in southern Ontario, Canada, 125 kilometres northeast of Toronto. The population of the City of Peterborough was 74,898 as of the 2006 census, while the census metropolitan area has a population of 121,428 as of a 2009 estimate. It presently ranks...

 into Rice Lake

Rice Lake

- Communities :In the United States* Rice Lake, Minnesota, a census-designated place in Clearwater County* Rice Lake , Minnesota, in Dodge and Steele counties* Rice Lake Township, St...

.
Lakefield College School

Lakefield College School

Lakefield College School is a coeducational boarding school located north of the village of Lakefield, Ontario, Canada.The school's motto is Mens Sana In Corpore Sano...

 lies on the east side of the lake.

Susanna Moodie

Susanna Moodie

Susanna Moodie, born Strickland , was an English-born Canadian author who wrote about her experiences as a settler in Canada, which was a British colony at the time.-Biography:...

, author of Roughing it in the Bush (1852), lived on a farm on the lake in the 1830s.

Although water levels in this lake and others in the Kawartha Lakes system are controlled to some extent by locks and dams, the lakeshore is vulnerable to flooding during the spring run-off period.