And the buildings:
- The original 1822 dam washed out in 1842 and was replaced that same year with a wooden dam. The 1842 washed out again in a major spring flood in 1912 at which time a concrete dam was built downstream by Arthur McFall. Vestiges of the 1842 dam were visible in 1982 when the TRCA upgraded the south shore berm
- The original 1822-1823 mill was incorporated into the new downstream mill built in 1846 by James Cupper Bolton
- The circa 1843 seasonal worker cottage is one of two co-joined dwellings that form the heritage designated ‘Mill Cottage’ at 97 King Street, Bolton’s oldest residence
- A second smaller dam was added in 1846 (see photo and map)
- The mill race which was dug out in 1845-46 was filled in in the early 1970s and the former mill pond is now Mill Park, created through community involvement in the early 1970s
- Two early mill worker cottages still stand along King Street East. #122 was built in the late 1840s; #132 is visible on the 1854 map.
- Edward Lawson’s 1855 frame store was replaced in the early 1880s by the Bonnar Block. The Bonnar Block was replaced by cold storage lockers in the 1950s
- The 1875 Gardhouse Store still stands at 49 Queen St North. It was re-bricked in the 1960s
- The mill owner’s home at 83 King Street East is the heritage designated Gardhouse-Goodfellow House
- The tennis courts below the dam lasted until 1912 when the concrete dam was built downstream
- The c1908 grain elevator along the CPR line stood until the mid-1960s
- After 1951, the 1850 enlarged mill building adapted into a Seed Coop.
- The mill structure was taken down in 1968 to make way for Humber Lea Road which leads to the north hill subdivision
- The 1912 concrete dam is still in place behind ‘Mill Cottage’