was followed in 1887 by their son Sir Charles Welby, 5th Baronet, MP for Newark and Under-Secretary of State for War. The park also houses a series of large ponds and a freshwater spring, St. Christopher's Well, which is hidden in a grotto built from fossils and shells in 1823. Within the cave is an inscription: "faery of the well". Denton Reservoir The main engineering feature of the Grantham Canal, which opened in 1797, was Harlaxton Drift near Grantham. This was a deep cutting which was built just wide enough for one-way traffic. Two passing places, where the canal was made wider, were added in 1801. Two reservoirs were also needed to feed the canal, one of which was built at Denton, close to the canal, and the other at Knipton, about 3 miles away. Both were on the Belvoir Estate, and the job of building them, along with the cutting, was the responsibility of William King, the agent for the Duke of Rutland. References Bibliography External links Denton Village website, (archived page). Retrieved 17 January 2014 "Denton, Lincolnshire", Roman-britain.org. Retrieved 7 July 2013 "Denton", Genuki.org.uk. Retrieved 7 July 2013 Denton village Villages in Lincolnshire Civil parishes in Lincolnshire South Kesteven District