Ottawa-Bonnechere Graben

Admaston/Bromley is an incorporated township in Renfrew County, Eastern Ontario, Canada. It was formed on January 1, 2000, when Admaston and Bromley Townships were amalgamated. It takes part of its name from Admaston, Staffordshire, a small English hamlet.

Cobden is a small community in the Township of Whitewater Region, in Renfrew County, Ontario, Canada. It is located 95 kilometres (59 mi) northwest of Ottawa, and roughly halfway between Renfrew and Pembroke on Highway 17.

Buttermilk Creek is a tributary of the Muskrat River in the township of Whitewater Region, Renfrew County, Ontario, Canada.

Opeongo High School is a secondary school in Renfrew County, Ontario, Canada, that serves the townships of Whitewater Region, Laurentian Valley, Admaston Bromley, Sebastapol, Bonnechere Valley, and North Algona-Wilberforce. It was built in 1968, at a cost of $3.6 million, to accommodate a growing population of students and a change in educational trends. It has a student population of between 400 and 500 students. Its colours are green and gold, and its mascot is the Wildcat.

Cobden/Bruce McPhail Memorial Airport (TC LID: CPF4) is located 2.4 nautical miles (4.4 km; 2.8 mi) southeast of Cobden, Ontario, Canada.

Astrolabe Lake (formerly Green Lake) is a lake in the township of Whitewater Region, Renfrew County, Ontario, Canada. Astrolabe Lake is where, in 1867, Edward Lee, a local farmboy, found Samuel Champlain's long lost astrolabe; a plaque now stands near the lake to commemorate this. The lake is a meeting point for the back end of both the local golf course, Oakes of Cobden, and the Logos Land waterpark. It drains via Buttermilk Creek and the Muskrat River into the Ottawa River.

Muskrat Lake is located in the Whitewater Region of Renfrew County, in Ontario, Canada. It is approximately 16 km (9.9 mi) in length, an average of 17.9 m (59 ft) deep but 64 m (210 ft) at its deepest point, and covers an area of 1,219 ha (3,010 acres). It is rumored to be home to a legendary lake monster that locals fondly refer to as “Mussie”. The lake currently has over 300 lakefront properties and two privately owned campgrounds surrounding its shores. The town of Cobden is the largest settlement on the lake, with a population slightly over 1,000 people.

The Snake River is a river in Renfrew County, Ontario, Canada.

Eganville is a community occupying a deep limestone valley carved at the Fifth Chute of the Bonnechere River in Renfrew County, Ontario, Canada. Eganville lies within the township of Bonnechere Valley. Eganville is also known as the Ordovician Fossil Capital of Canada. There are many fossils to be found in this area from approximately 500 million years ago (in a time before dinosaurs) including coral, crinoids, trilobites, cephalopods, gastropods, pelecypods, stromatolites, and brachiopods. The Bonnechere Valley is also a gateway to some of north-eastern Ontario's most well-known tourist destinations, including the nearby Bonnechere Caves. The caves are located under a hill of limestone, said by geologists to have been the bottom of a tropical sea 500 million years ago. The Bonnechere Museum, through a partnership with the Bonnechere Caves, offers fossil hunts four times in a summer season where people can practice finding fossils and even take one home if they find a good one. Eganville is also home to a Geo-Heritage Walking Trail located along the Bonnechere River which features a fossil pit, a visit to an old quarry, a trench, wild plants, and scenic lookouts. Eganville is a stop to destinations into central Ontario. Ontario Highway 41, which runs north–south from Pembroke to Napanee, intersects with Ontario Highway 60 in Eganville. The town of Eganville is the fifth of five chutes along the Bonnechere River. The others being Castleford, Renfrew, Douglas and Fourth Chute. The chutes used were for moving timber past rapids and waterfalls.

Bonnechere Valley is a township municipality in Renfrew County, Ontario, Canada. It had a population of 3,674 in the Canada 2016 Census. It was established in 2001 by amalgamation of the village of Eganville and the townships of Grattan, Sebastapol and South Algona.

Lake Doré is a freshwater lake in the township of North Algona-Wilberforce, Renfrew County, Ontario, Canada, about 6 kilometres (3.7 mi) north of the community of Eganville in the neighbouring township of Bonnechere Valley.

Rankin is a nominal community in Renfrew County, Ontario, Canada.