The Lake Tahoe Railway and Transportation Company was a , narrow gauge railroad that ran from the Central Pacific Railway at Truckee, California to the waterfront at Lake Tahoe. The railroad's width was converted to in 1926. The railroad operated its own property from 1899 until October 16, 1925, at which time it was leased to the Southern Pacific Company, which bought the property outright in May, 1933. SP abandoned the line in 1943.
The Lake Tahoe Railway and Transportation Company operated a narrow gauge railroad between Truckee and Lake Tahoe, California assembled from equipment formerly used on the Lake Tahoe Railroad of Glenbrook, Nevada (USA). A separate company known as the Lake Tahoe Railway () proposed to build a standard gauge line northeast from Placerville to Pino Grande and then Lake Tahoe but construction never commenced.
The railroad followed the Truckee River approximately via the modern route of State Route 89.
Ward Creek Branch
The LT RR had four used gauge Baldwin locomotives that operated on the line.