The municipality consists of the hamlet of Carroll and the village of Waltham, both near the Ottawa River[4] between Chichester and Mansfield-et-Pontefract, about 30 kilometres (19 mi) west of Fort-Coulonge.

The northern portion is a vast extended tract of undeveloped land,[5] dotted with lakes, such as Findlay, Landon, Gagnon, and Caughlin, which are popular for fishing.

[1] In 1937, a hydroelectric generating station and dam were built across the Noire River just north of Waltham village, forming a reservoir called Robinson Lake.

It was designed by Brodie Gillies to run all year round producing hardwood lumber and commenced operation March 7, 1955.

[8] In 1959, rail service to Waltham was discontinued, and in 1984 the railline was removed and later turned into the Cycloparc PPJ bike path stretching from Bristol, Quebec, to Pembroke, Ontario.

[citation needed] The property now serves as a storage site for a tree planting company.

Brochu was able to get 8 people who all saw the object, which remained stationary for about 10 minutes and then left and landed again in what witnesses described as Alouette [sic] Island in the Ottawa River.