The Spanish first introduced the arrastra to the New World in the 1500’s. The work “arrastra” come from the Spanish word “arrastre”, meaning to drag along the ground. When ore was quarried out of the hard rock mines, the . . . — — Map (db m53272) HM
In 1859 a wooden suspension flume 2200’ long was constructed across this valley by G.W. Holt and August Conrad as a link in the Golden Rock Ditch system which conveyed the water of the South Fork of the Tuolumne River to the mining areas of . . . — — Map (db m53274) HM
Formerly called “First Garrote” traced to hanging of Mexican for stealing horse. Adobe buildings still standing (1949) built in 1849 as shown by dated adobe brick taken from partition. Gold discovered here 1849. Thousands in placer gold taken from . . . — — Map (db m178693) HM
Built in 1849 for Joshua D. Crippen and Co., it served as an adobe trading post and dwelling house until 1865. George Reid bought the property in 1851. Sold to Matthew Foote in 1866 who converted the building and opened the Garrote Hotel, renamed . . . — — Map (db m51559) HM
Masterminding the Hetch Hetchy Water and Power Project was the brilliant chief engineer Michael Maurice O’Shaughnessy. One of his first priorities was to build a reliable and high-capacity standard gauge railway that could traverse the rugged . . . — — Map (db m1944) HM
The great 1906 San Francisco earthquake destroyed key portions of the City of San Francisco’s water system. The three days of unquenchable fires that followed the quake claimed more than four square miles of land, thousands of buildings and an . . . — — Map (db m1940) HM
A U.S. Forest Service crew leader from Siskiyou County, Calif. Lost his life while fighting the Stanislaus Complex Fire which destroyed 147,000 acres. For the love of the forest he gave the ultimate sacrifice September 11, 1987.
Sit and rest . . . — — Map (db m905) HM
This building is the oldest liquor-serving establishment in the state of California. It began life in 1852 as “The Granite Store” built by Peter King. It operated as a general mercantile with, of course, the obligatory “plank over . . . — — Map (db m53273) HM
(Tablet 1) O’Shaughnessy Dam
City and County of San Francisco.
James Rolph Jr. Mayor
• Foundation Elev. 3388
• Bottom Valves Elev. 3508
• Initial Crest Elev. 3726
• Length of Crest 600
• Storage . . . — — Map (db m1920) HM
Every year the Hetch Hetchy Water and Power System produces 1.7 billion kilowatt-hours of clean renewable hydropower - equivalent to the power generated from burning 39 million gallons of oil.
Early Intake Powerhouse was built in 1918, twelve . . . — — Map (db m1941) HM
Sizable settlement established at this rich placer location in 1849 by miners spreading east from Big Oak Flat and Groveland. Famous Hangman's Tree, part of which still stands (1950), reported to have been instrumental in death of a number of . . . — — Map (db m163766) HM
Within this 459-square-mile Hetch Hetchy watershed are 287 miles of trails, including a portion of the Pacific Crest Trail. They offer views of an abundance of flora and fauna, along with breathtaking scenery.
Upstream from the dam to your . . . — — Map (db m1943) HM
The Tuolumne River supplies 85% of the water for 2.4 million people. It originates from pristine spring snowmelt as far upstream as Mt. Lyell at an elevation of 13,114 feet.
The City and County of San Francisco protects the resources entrusted . . . — — Map (db m1942) HM