"[6]Nichols Canyon Road, leading north from Hollywood Boulevard, was completed to Woodrow Wilson Drive via Courtney Street in 1925.

The idea was to widen the roadway, referred to as a northward "extension" of Genesee Street, to 46 feet, "with six inches of asphaltic concrete, through Hollywood Boulevard Estates to Mullholland High Way."

Grading of the Nichols Canyon road had already been "completed and paid for by individual property owners, who have installed water connections the full length of the thoroughfare.

"[9] A 1930 report also stated that the canyon road would be renamed Genesee and would be extended north "to the Hollywood Boulevard Estates property line on Mulholland High Way."

"[9] In 1914, the canyon had a "sparkling stream which the trail crosses about twenty times" and which "splashes over rocks fifty feet high," forming a pool below.

"[3] In 1997, James Sowell, the manager of environmental compliance for the Los Angeles Metropolitan Transit Authority noted the natural beauty of the three-mile-long canyon: "It's spectacular," he said.

[17] Homes in Nichols Canyon suffered major damage or were swept away when a rainstorm drenched Southern California on New Year's Day, 1931.

In 1934, the City Council allocated US$46,000 (equivalent to $1.05 million in 2023) for a large debris basin at the foot of the canyon, which residents had sought for years.

[20]In 1908, the Los Angeles County Board of Supervisors approved the establishment of a factory in the canyon to manufacture an explosive called Satanite, even after "Hollywood citizens and representatives of civic bodies" had protested.

Pumping of water flooding the tunnel beneath the Santa Monica Mountains was draining the entire Hollywood basin of up to a third of its annual capacity.

They searched "Beside the winding roadway [where] runs a densely overgrown culvert which at places deepens to a 30-foot ditch and elsewhere widens into the enormous unused Nichols Canyon Reservoir.