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historicalmarkerproject/markers/HMY7Z_soviet-transpolar-landing-site_San-Jacinto-CA.html
Three miles west of this site, on July 14, 1937, three Soviet aviators completed a transpolar flight from Moscow in 62 hours, 17 minutes, establishing a new world's nonstop distance record of 6,305 miles. The huge single-engine aircraft, an ANT-25…
historicalmarkerproject/markers/HMY7Y_highgrove-hydroelectric-plant_Riverside-CA.html
The first commercially significant hydroelectric plant in California, designed and built by Gustavus Olivio Newman, went into service here in 1888. Utilizing the flow of the Riverside Water Company Canal to produce about 225 kilowatts of power use…
historicalmarkerproject/markers/HMY7V_desert-training-center_Indio-CA.html
The D.T.C was established by Major General George S. Patton Jr. in response to a need to train American combat troops for battle in North Africa during World War II. The camp, which began operation in 1942 covered 18,000 square miles. It was the l…
historicalmarkerproject/markers/HMY7S_speed-of-light-experiment_Idyllwild-Pine-Cove-CA.html
From this location instruments reflected light in 1926 to Mount Wilson, 82 miles northwest. The work was one of a series of experiments conducted by Nobel Prize-winning scientist Dr. Albert A Michelson to refine the value of the speed of light. Al…
historicalmarkerproject/markers/HMY7N_young-divisional-camp_Charleston-CA.html
Camp Young, named after Lt. Gen. S.B.M. Young, the 1st Army Chief of Staff, was established at this site in the Spring of 1942. It was one of twelve such camps built in the southwestern deserts to harden and train United States Troops for service …
historicalmarkerproject/markers/HMY7J_jensen-alvarado-ranch_Riverside-CA.html
Danish sea captain Cornelius Jensen sailed to San Francisco during the Gold Rush to sell his cargo. In 1854 he settled in Agua Mansa, established a store, and married Mercedes Alvarado, a descendant of a pioneer Californio family. The Jensens purc…
historicalmarkerproject/markers/HMY7F_transpolar-record-flight-site_San-Jacinto-CA.html
Near this site on July 14, 1937, three Russian aviators completed a transpolar flight from Moscow in 62 hrs, 17 min establishing a new world's nonstop distance record of 6,305 miles. The huge single-engine aircraft, an ANT-25 military reconnaissan…
historicalmarkerproject/markers/HMY7C_blythe-intake_Blythe-CA.html
On July 17, 1877, Thomas Blythe, a San Francisco financier, filed the first legal claim for Colorado River water rights. Oliver Callaway planned a diversion dam and canal which opened in 1877 to irrigate the Palo Verde Valley. This made possible t…
historicalmarkerproject/markers/HMY7B_robidoux-grist-mill-site_Riverside-CA.html
In 1846 the first grist mill in this region was built nearby by Louis Robidoux, owner of this section of Rancho Jurupa. The mill provided flour, a popular but scarce commodity, for settlers and American troops. The mill was washed away by a flood …
historicalmarkerproject/markers/HMY77_wiley-well_Blythe-CA.html
A.P. Wiley, storekeeper and postmaster at Palo Verde, financed miners to prospect this area early in the1900s. He also financed the first well, approximately 9 miles southerly of here, it was used and maintained for years by prospectors and cattle…