Home/Historic Film Locations/Indiana Jones and the Last Crusade motorcycle escape,1989 (filmed 1988) in Mt. Tamalpais Watershed, Marin County California. Photo taken May 20,2023 where Sky Oaks Road crosses over Shaver Grade Road and the Alex Foreman Trail. Historic Film Locations Indiana Jones and the Last Crusade motorcycle escape,1989 (filmed 1988) in Mt. Tamalpais Watershed, Marin County California. Photo taken May 20,2023 where Sky Oaks Road crosses over Shaver Grade Road and the Alex Foreman Trail. August 8, 2024 August 8, 2024 Facebook Twitter LinkedIn Tumblr Pinterest Reddit VKontakte Share via Email Print