Sideling Hill (Bedford – Fulton Counties)
- COUNTY: Bedford / Fulton County Line at top of ridge
- EXPLANATION OF NAME: These large wooden Keystones were found at the top of all major highway crossings of the ridgetops. The Lincoln Highway is U.S. Route 30, the first trans-continental highway in the U.S.
- MANUFACTURER: It is unknown if there was any single manufacturer of these signs.
- STATUS: None of these vintage Keystones survive. Simple rectangular signs with ridge name and elevation have replaced thlem.