A nice description of Multnomah Falls Lodge History can be found on the "PDXHistory.com" website (2006):

"... Another required stop is always Multnomah Falls, the second highest water fall in the U.S. at 860 feet. In 1922, the land was given to the city of Portland by the Oregon and Washington Railroad & Navigation Company, forerunner of the Union Pacific. The Union Pacific regularly stopped on Multnomah Falls Lodge when it was a train depot. The Cascadian-style Multnomah Falls Lodge was completed in July of 1925 at a cost of $40,000. The Lodge was designed by the famed architect A.E. Doyle, designer of the U.S. Bank Building, Reed College and Lipmans. Rolla Simmons, famous for Simmons Hillvilla, was the first concessionaire. In 1929, the canopy-covered patio was removed and the building was extended further to the east. Ownership of Multnomah Falls Lodge was passed to the Forest Service in 1939. Simmons continued to operate the food services at the Lodge until the Lodge closed in November 1942 during World War II. After the war, the Lodge was remodelled and it reopened in February 1946 under new management. Multnomah Falls remains one of Oregon’s most popular attractions and the Lodge recently celebrated 75 years. ..."

In 1981 the Multnomah Falls Lodge and Footpath (Benson Bridge) were listed on the National Register of Historic Places (Building #81000512). Every type of rock found in the Columbia River Gorge is represented in the Lodge.