Los Angeles County

In Los Angeles County, California

Los Angeles County, California

Los Angeles County is a county in the U.S. state of California. As of 2010 U.S. Census, the county had a population of 9,818,605, making it the most populous county in the United States. Los Angeles County alone is more populous than 42 individual U.S. states...

, United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

, at 39°19′59"N 118°30′21"W, Weldon is a canyon through which Interstate 5 passes. The Old Road, now paralleled by I-5, opened on May 28, 1930 through the canyon as a bypass of the 1910 Newhall Tunnel. This original road through the canyon was 20 feet (6 m) wide and made of concrete

Concrete

Concrete is a composite construction material, composed of cement and other cementitious materials such as fly ash and slag cement, aggregate , water and chemical admixtures.The word concrete comes from the Latin word...

. The canyon is named after Arthur Weldon, who helped build the Southern Pacific Railroad

Southern Pacific Railroad

The Southern Pacific Transportation Company , earlier Southern Pacific Railroad and Southern Pacific Company, and usually simply called the Southern Pacific or Espee, was an American railroad....

's nearby San Fernando Tunnel.

Solano County

In Solano County, California

Solano County, California

Solano County is a county located in Bay-Delta region of the U.S. state of California, about halfway between San Francisco and Sacramento and is one of the nine San Francisco Bay Area counties. The county's population was reported by the U.S. Census to be 413,344 in 2010...

, at 38°24′42"N 122°03′01"W, Weldon is the name sometimes given to a canyon west of Vacaville, California

Vacaville, California

Vacaville, California is a city located in the northeastern portion of the San Francisco Bay Area in Solano County. The city is nearly half way between Sacramento and San Francisco on I-80. It sits approximately from Sacramento, and from San Francisco...

. Weldon canyon is mentioned in the diaries of Willis Linn Jepson

Willis Linn Jepson

Willis Linn Jepson is known as California's most distinguished early botanist. He became interested in botany as a boy and explored adjacent regions. He had come in contact with various botanists before he entered college...

. This canyon is now more commonly called Mix Canyon. Mix Canyon Road runs through it.