SIGNS: Production of the original entrance sign coincides with Lange's rustic sign program at Crater Lake in 1936. Using CCC labor, rough hewn wood signs with raised lettering and carved images were created. The existing sign is an amalgam of the original 1935 sign of oil-impregnated wood with routed yellow-orange painted lettering on a brown background, glued to a 1937 NPS rustic sign with raised lettering. The sign standard (post) is a 1962 replacement of the original bold-cut log form. Other signs at Oregon Caves, including directional, identification, and interpretive, were produced at the Crater Lake sign shop. Records indicate that some signs may have been produced at the sign shop in Yosemite. [20] Signs at Oregon Caves were replaced with routed wood signs of creme white lettering and brown background as part of the Mission 66 landscape improvement program. Today, there are few extant Mission 66 signs, as well as a few stencil signs produced by the concessioner in the 1970s. Other markers on site include the marble Elijah Davidson Monument. Erected in the early 1930s, the monument rests on a mortared stone base at the east side of the main cave entrance.