Montem Mound, also known as Salt Hill (originally Salts Hill) is in Chalvey. Its date of origin is not known, but it is now a scheduled ancient monument. Eton College held its 'Eton Montem' ceremonies here until 1844. The surrounding area to the north of Chalvey and the Great West Road is also known as Salt Hill and includes Salt Hill Park. Salt Hill Park once boasted great iron gates, which were subsequently smelted as part of the war effort during World War II.