Denholm is a popular location for cottage vacationing and noted for its outdoor sport and recreation opportunities, such as fishing and hunting.

[8] During the second decade of the 20th century, Denholm's development was boosted due to the presence of asbestos, serpentine, and calcite mines.

There is a large parking lot convenient to the doors, and it is often used as a rally point for visitors and tourists before heading north on Chemin de Poisson Blanc.

Private dwellings occupied by usual residents (2021): 274 (out of 561 total)[3] Languages: Denholm is part of the Pontiac federal electoral district and represented by Will Amos, Liberal Party of Canada.

Provincially, it is part of Gatineau electoral district and represented by Robert Bussière, member of the Coalition Avenir Québec.