Foremark Reservoir (OS grid reference SK3324) is a reservoir in South Derbyshire owned by Severn Trent which is also a 230-acre (0.93 km2) nature reserve open to the public for walking, fishing, bird watching and horse riding.

The reservoirs source of water is from the River Dove at Egginton,[2] and it was constructed in the 1970s.

[3] Twenty-seven varieties of butterfly have been recorded on the reserve,[4] including the large skipper, the speckled wood, white-letter hairstreak, small copper, holly blue and the brown argus.

[citation needed] The reservoir is stocked with trout and is available for angling between the end of March and the middle of December.

[5] One reason for the plentiful fish might be the large abundance of aquatic invertebrates – including dragonfly larvae, water boatman, great diving beetles (and larvae), pond skaters, water scorpions and silver diving beetles.