In 1917 the congregation of the Knox Presbyterian Church realized the need to replace the original church, built in 1886, but the war caused a tabling of the plans until 1920, when construction finally began.
Built in 1921 at a cost of $32,000, it was designed by local architect N. Emms Reid. This church formally opened in December 1921 as Knox Presbyterian Church. Following a union with the Trail Methodist Church in 1925, it became Knox United Church, affiliated with the United Church of Canada. It is a beautiful stone building with an imposing square bell tower at the front and stylized Gothic windows all around. It has three stained glass windows in the centre of the front wall, the Memorial Window high on the rear wall, and two more in the bell tower.
This church has been designated a heritage building by the City of Trail.