The one major highway near Lava Beds National Monument is CA 139 to the east, from where two lesser roads enter the preserve from the north and south. Access from the west is also possible, along partly unpaved routes through the Modoc National Forest, such as Red Rock Road from Macdoel.

PDF format maps of Lava Beds National Monument, from the National Park Service:

Area map (56 kb)
Detail map (228 kb)