大欖隧道
The country park is named after Tai Lam where the park is located nearby. A river stream also named after the area as Tai Lam Chung (). Due to the construction of a dam, the water flows into the Tai Lam Chung Reservoir. The reservoir is entirely surrounded by the country park. The reservoir is managed by the Water Supplies Department. Tai Lam Tunnel and Tai Lam railway tunnel pass through the country park underground. A village, as well as two prisons: Tai Lam Centre for Women and , all outside the boundary of the country park, are named after Tai Lam.