Howden Edge

High Stones, at 548 metres (1,798 ft), is the highest point within the boundaries of both the City of Sheffield and South Yorkshire, England.High Stones lies on the Howden Moors towards in the northern Peak District National Park, between Langsett Reservoir to the north-east and Howden Reservoir to the south-west. The area is managed by the National Trust, as part of the Nether Hey area of their High Peak Estate.

Margery Hill is a 546-metre (1,791 ft) hill on the Howden Moors in South Yorkshire, England. It lies towards the northern boundary of the Peak District National Park, between Langsett Reservoir to the northeast and Howden Reservoir to the southwest. The area is managed by the National Trust as part of their High Peak Estate. Peat near the summit cairn has been dated to a uniform age of about 3,500 years old, indicating that it was constructed rather than natural; it is believed to have been part of a Bronze Age burial mound. The area has been designated a Scheduled Ancient Monument by English Heritage.Margery Hill is the highest marked point within the boundaries of the City of Sheffield. The land rises slightly to 550 metres (1,800 ft) about 0.9 miles (1.5 km) to the south, near High Stones.

The River Westend flows through the Dark Peak of the Derbyshire Peak District in England. Its source is at Bleaklow Stones on Bleaklow, from where it flows south east into a western arm of the Howden Reservoir. Its lower reaches run through a forestry plantation. Tributaries of the river include Ravens Clough, Black Clough, Fagney Clough, Green Clough and Grinah Grain.

Lost Lad is a hill, 518 metres (1,699 ft) high on the Derwent Edge in the Peak District in the county of Derbyshire in England. It is a subpeak of Back Tor (538 metres [1,765 ft]).

The Howden Reservoir is a Y-shaped reservoir, the uppermost of the three in the Upper Derwent Valley, England. The western half of the reservoir lies in Derbyshire and the eastern half is in Sheffield, South Yorkshire; the county border runs through the middle of the reservoir, following the original path of the River Derwent. The longest arm is around 1+1⁄4 mi (2.0 km) in length. The reservoir is bounded at the southern end by Howden Dam; below this, the Derwent flows immediately into Derwent Reservoir and subsequently the Ladybower Reservoir. Other tributaries include the River Westend, Howden Clough and Linch Clough. Work commenced on the dam's construction on 16 July 1901 and completed in July 1912. The chief engineer was Edward Sandeman. He was also in charge of building nearby Derwent dam and was awarded the Telford Medal in 1918 for his work "Derwent Valley Waterworks". The works involved constructing a temporary village at Birchinlee, or "Tin Town", for the workers, a temporary railway line from the main line at Bamford, construction of a link aqueduct to the Derwent Dam. The dam is of solid masonry construction, and 117 ft (36 m) tall, 1,080 ft (330 m) long, and impounds 1,900,000 imp gal (8,600 kl) of water, from a catchment area of 5,155 acres (2,086 ha). The workers who died during the construction of the dam were buried in St John the Baptist's Church, Bamford. To the east of the reservoir stands Featherbed Moss, one of the highest tops in the area at 1,788 ft (545 m), and one of several tops of that name in the area. This is not to be confused with the more well-known Featherbed Moss on the Pennine Way between Kinder Scout and Bleaklow.

Derwent Reservoir is the middle of three reservoirs in the Upper Derwent Valley in the north of Derbyshire, England. It lies approximately 10 mi (16 km) from Glossop and 10 mi (16 km) from Sheffield. The River Derwent flows first through Howden Reservoir, then Derwent Reservoir and finally through Ladybower Reservoir. Between them they provide practically all of Derbyshire's water, as well as to a large part of South Yorkshire and as far afield as Nottingham and Leicester.Derwent Reservoir is around 1.5 mi (2.4 km) in length, running broadly north–south, with Howden Dam at the northern end and Derwent Dam at the south. A small island lies near the Howden Dam. The Abbey Brook flows into the reservoir from the east.At its full capacity the reservoir covers an area of 70.8 ha (175 acres) and at its deepest point is 34.7 m (114 ft) deep.

Derwent Edge is a Millstone Grit escarpment that lies above the Upper Derwent Valley in the Peak District National Park in the English county of Derbyshire. An Ordnance Survey column marks the highest point of the Edge at Back Tor (538 metres, 1765 feet). North of Back Tor the edge extends into Howden Edge and enters the county of South Yorkshire.

Derwent Woodlands War Memorial is a 20th-century grade II listed war memorial near the Ladybower Reservoir, Derbyshire.

Langsett Reservoir is in Yorkshire, England, near the villages of Langsett and Upper Midhope, on the edge of the Peak District National Park. The reservoir was constructed between 1898 and 1904, and is now managed by Yorkshire Water. Fed by the Little Don or Porter River, it is around a mile long, and supplies water for Sheffield and Barnsley via the Langsett Treatment Works.

Ladybower Reservoir is a large Y-shaped, artificial reservoir, the lowest of three in the Upper Derwent Valley in Derbyshire, England. The River Ashop flows into the reservoir from the west; the River Derwent flows south, initially through Howden Reservoir, then Derwent Reservoir, and finally through Ladybower Reservoir. The reservoir is owned by Severn Trent.The area is now a tourist attraction, with the Fairholmes visitors' centre located at the northern tip of Ladybower. The east arm of the reservoir, fed by the Ladybower Brook, is overlooked by Hordron Edge stone circle.

Derwent was a village 'drowned' in 1944 when the Ladybower Reservoir in Derbyshire, England was created. The village of Ashopton, Derwent Woodlands church, and Derwent Hall were also 'drowned' in the construction of the reservoir.

Upper Midhope (archaic Over Midhope) is a village in the civil parish of Bradfield within the Stocksbridge and Upper Don electoral ward in the borough of the City of Sheffield, England. It lies just on the edge of the Peak District national park. Historically the habitation, together with Nether Midhope (Midhopestones), were collectively known as Midhope.