July 11, 1930
Funicular fire on Lookout Mountain
Colorado School of Mines' "M" on Mount Zion is lit for the first time
Turkey Creek flood damages Tiny Town for the second time
March 19, 1932
Colorado School of Mines emblem, the "M" on Mount Zion, is permanently lit
Prohibition ends. Coors Brewery operates 24 hours a day in order to meet demand, producing 350 barrels of beer per day.
July 7 & 8, 1933
Bear Creek flood starting at Sawmill Gulch and Mount Vernon Creek near Idledale claims five lives with major destruction of Bear Creek Canyon Road between Idledale and Morrison.
Colorado National Guard Rifle Range renamed Camp George West. During WWII camp houses training schools for 200 guard dogs and for military police. German prisoners of war also held there.
March 4, 1934
Major windstorm hits Golden, tearing the roof off the Everett Block at 12th and Washington and slamming it into the Rubey Block across Washington Avenue
August 9, 1934
Flood of Bear Creek and Mt. Vernon Creek claims six lives with much property damage near Kittredge
Fire destroys Tiny Town's Indian pueblo and many of its buildings. The miniature businesses and residences survive the fire.
Ralston Dam built as Depression-era federal works project
Red Rocks Amphitheater near Morrison built by the Civilian Conservation Corps (CCC) under the auspices of the Works Progress Administration (WPA) and Denver Mountain Parks
Coors' classic slogan "Brewed with pure Rocky Mountain spring water," adopted by the company
March 27, 1937
Denver Fire Clay Mine north of Golden caves in, trapping three miners while one escapes. After 18 hours all miners are rescued uninjured.
- Federal Correctional Institute establishes federal prison farm south of Green Mountain
- William Heckethorn incorporates Heckethorn Manufacturing and Supply in Littleton. HECO makes artillery shells and mortar fuses for the armed services.
August 15, 1938
Jefferson County Pioneer Museum established by Jefferson County Commissioners with aid of Works Progress Administration. Operates today as the Golden History Center.
September 2 & 3, 1938
Bear Creek flood kills six people in Bear Creek Canyon between Morrison and Kittredge, with $450,000 in damage through Morrison