Donner Lake Rim Trail
For a different perspective of Donner Lake, head up to the Donner Lake Rim Trail (DRLT). The DRLT is a land trust and volunteer project, which will be 23 miles once complete. Currently, several miles (out-and-back) are currently open for mountain bikes, accessible at a number of locations.
Many people access it at the Hole in the Ground Loop, which is also a popular Truckee mountain biking trail. While the Emigrant Trail is great for riders of all levels, the Donner Lake Rim Trail is more of a moderate to advanced trail.