What were the main trails to the west and what areas did they pass through?

The main trails to the west included the Oregon Trail, the California Trail, and the Santa Fe Trail. The Oregon Trail stretched from Missouri to the Willamette Valley in Oregon, passing through areas like Kansas, Nebraska, and Wyoming. The California Trail branched off from the Oregon Trail, leading to California and traversing regions such as Nevada. The Santa Fe Trail connected Missouri to Santa Fe, New Mexico, crossing through parts of Kansas and Colorado.