1972 Map of Janesville

About this map

The Diamond Mountains dominate the southern portion of this 1970s survey, rising sharply from the Honey Lake Valley floor. In the valley below, the settlement of Janesville is situated along the base of the range, where numerous drainages like Bankhead Creek and Sloss Creek descend from the heights of Thompson Peak. The landscape transition is stark, moving from the irrigated flats and infrastructure of the north—including the Susanville Municipal Airport and the reservoir at Lake Leavitt—to the heavily forested slopes of Lassen National Forest and Plumas National Forest. Local history is anchored by the Johnstonville Cem and another Cem near the town site, while the presence of several Borrow Pits and Gravel Pits indicates the ongoing extraction and infrastructure needs of the era. This map captures the intersection of mountainous wilderness and the high-desert agricultural valley prior to modern residential expansion.