Which major river is recognized as the longest in California?

The Sacramento River is recognized as the longest river in California, stretching approximately 447 miles. It plays a crucial role in the state's ecosystem and water management system, providing vital water resources for agriculture, urban areas, and environmental habitats. The Sacramento River also serves as a significant source of water for the Central Valley, which is essential for one of the most productive agricultural regions in the country. The river's length and importance in supplying water contribute to its status as the longest river in California.

While the San Joaquin River, Los Angeles River, and American River are important waterways within the state, they do not match the length of the Sacramento River. Each of these rivers has its own significance concerning local water supply, recreation, and habitat, but they are shorter in distance compared to the Sacramento River. Understanding these distinctions is crucial when studying California's complex water system and geography.