As might be expected of a railroad built for an industrial purpose, the H&W’s business was dominated by freight. Passenger revenue was less than 1% of freight revenue. with only two directors representing other quarrying interests. By 1908, those two had left the board and the company was firmly in the control of the WGC. Limited by the switchbacks, train length averaged ten to fifteen cars in the busy years; the largest train was reported to have been 22 cars long. The largest single load carried was a 61-ton stone from the "White" quarry of the WGC. The railroad’s earnings varied widely with the demand for granite, but on at least one occasion the profits were sufficient to justify paying a 6% dividend on
common stock and 12% on preferred. Railroad operations were of three varieties: main line hauling, quarry switching, and yard switching. Main line hauling involved running trains up and down the mountain, bringing supplies up, and stone down. Quarry switching was moving loaded and empty cars among the sidings at the quarries, and composing them into trains.
Yard switching involved moving cars to, from, and within the yard, and especially the finishing sheds, assembling trains, and exchanging cars with the St.J.&L.C. at Granite Junction. The company had two train crews, a main line crew and a yard crew. The main line crew performed the quarry switching as well as the runs up and down the mountain, and consisted of a conductor, engineer, fireman, and two brakemen (one at each end of the train). This crew typically made two round trips a day between the quarries and Hardwick. The locomotive was always placed at the downhill end of the train, where its braking power could be used to slow the whole train. Flat cars had manual brakes, which would be set and released by the brakemen on orders from the engineer. The Shay locomotives used considerable amounts of water, which could be replenished at three points along the route: the stream by Buffalo Crossing, a low spot between Burnham Hill and Foster Summit, and a tank at the quarries. The yard area around Buffalo Crossing had such facilities as a coal pit, a car repair shop, a sawmill and electric power plant. A coal trestle served both the power plant and the locomotives, which remained below the trestle on a loading siding, allowing their tenders to be loaded with coal from the coal cars above using gravity. Locomotives were repaired in the engine house in the West End. Other facilities included a track scale, which allowed car weights—and thus shipping charges—to be calculated. ==Decline==