Part of the reason Lassen Volcanic National Park is one of the least visited national parks is its remoteness, which is partly perception. The most foolproof route to get there is to take Calif. 44 east from Redding (on I-5), which leads to the park's northwest entrance. If you're coming from the south along I-5, take Calif. 36 east from Red Bluff, which leads to the park's southwest entrance.
If you're arriving from the east on I-80, take the U.S. 395 turnoff at Reno, Nevada, and head to Susanville. Depending on which end of the park you're shooting for, take either Calif. 44 (to the northwest entrance) or Calif. 36 (to the southwest entrance) from Susanville.
Calif. 89 leads to the main park road, which crosses the park in a 30-mile half-circle, with entrances and visitor contact stations at either end.
Most visitors enter the park at the Southwest Entrance Station, drive through the park, and leave through the north entrance, or vice versa. Three other entrances lead to remote portions of the park. Warner Valley and Juniper Lake are accessible from the south on the road from Chester. The Butte Lake entrance is on a dirt road from Calif. 44 between Old Station and Susanville.
The Nearest Airport -- The closest airport is Redding Municipal Airport, 6751 Woodrum Circle (tel. 530/224-4320; www.ci.redding.ca.us). It's served by United Express, with car rentals from Avis, Budget, and Enterprise. The closest major airports are in Sacramento and Reno.
Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.