A timeless and high-resolution 6x7 medium format film photograph of the historic 1910 railroad tunnel in Auburn, California, captured on Ilford FP4 Plus. Part of the Structure collection, this analog study features a warm, sepia-toned monochrome palette that highlights the intricate stone masonry and arched portal of this Sierra Nevada foothills rail landmark. The legendary fine grain and sharpness of the FP4 film emphasize the leading lines of the train tracks as they draw the eye toward the distant light of the tunnel's exit. This professional study documents the human impact and industrial engineering of Northern California’s transportation history, capturing the intersection of turn-of-the-century stone-working and contemporary rail infrastructure within the Matt Haupt collection.