Sacramento Valley

Visitors to rural Colusa County will find an abundance of rice fields and almond trees, but a limited number of amenities and attractions. Sights that may be of interest include four national wildlife refuges, as well as the Colusa County Courthouse in the town of Colusa, which was erected in 1861 and is the oldest remaining courthouse in the Sacramento Valley.

Glenn County is an agricultural region that is most likely to be experienced by travelers passing through on Interstate 5. While it lacks significant amenities, there are a few options for travelers to experience small-town America at events such as the Glenn County Fair, held in mid-May in the town of Orland, or at the Thunderhill Raceway Park outside of Willows, home to the longest automobile race in the United States: the 25 Hours of Thunderhill.

Sacramento County stretches from the wetlands at the edge of the San Francisco Bay to the rolling hills of Gold Country. The Sacramento and American Rivers played prominent roles in the county's development, and today offer outdoor opportunities ranging from boating to fishing to birdwatching. The capital city of Sacramento is located at the rivers' confluence, and visitors will appreciate its historic districts and more than 25 museums.

Tiny Sutter County lies between the Sacramento and Feather rivers, with nearly 90% of the county's land used for grazing and agriculture. The county is home to the eroded volcanic lava domes of the Sutter Buttes, which occupy a circular area roughly 10 mi across and are sometimes referred to as the world's smallest mountain range.

With extensive farmlands, Yolo County offers numerous opportunities for visitors to engage in agritourism: farmer's markets are held regularly, organic farms offer tours and the opportunity to pick your own produce, and more than 35 wineries can be found in the county. The college town of Davis is home to California's third-largest state university and boasts the highest number of bikes per capita in the USA, a statistic that led the US Bicycling Hall of Fame to move to the town in 2010.

Located along the western slope of the Sierra Nevadas, rural Yuba County offers recreational opportunities in the Plumas and Tahoe National Forests, and visitors can get a glimpse into the area's Gold Rush past at the ghost town of Timbuctoo and neighboring Smartsville. The western side of the county is flatter, more populous, and primarily used for fruit orchards, rice fields, and grazing.