The Viking Altar Rock in Sauk Centre, Minnesota, is a glacial erratic and a local landmark. The boulder was found in 1943 and is roughly 8.2 m (27 ft) long by 5.2 m (17 ft) wide. It has four roughly triangular holes about 1 meter above the base. The rock is promoted as an attraction as part of a "Trail of the Vikings" featuring supposed evidence of Norse exploration of Minnesota. This is however conjecture. The "altar" was rededicated in August 1975 with an ecumenical celebration of Mass. See also Skystone, a Western Washington erratic with pits drilled in its upper surface References External links Historical Sites: Todd County Archaeological sites in Minnesota Geography of Stearns County, Minnesota Glacial erratics of the United States Minnesota culture Pseudoarchaeology Tourist attractions in Stearns County, Minnesota Rock formations of Minnesota Landforms of Stearns County, Minnesota