From Truckee, CA (off of I-80) you can drive up Donner Pass road to the scenic lookout about a mile east of the summit.
The first transcontinental railroad crossed the California High Sierras at Donner Pass. The railline was in continuous service until the early 90's. The trains still cross the Sierras nearby, but the original rail line shown here is now silent. Donner Peak towers above the old concrete snowsheds.