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Jeffry Bog Nature Reserve

Jeffry Bog lies in the tranquil setting of Kirkham Gorge and offers a range of habitats, with an impressive range of wildflowers, including early purple orchid, bogbean and betony.

Standing on the banks of the River Derwent, Jeffry Bog is a relic wet pasture with an important lowland marsh that is embraced by the Howardian Hills Area of Outstanding Natural Beauty.

Despite its small size, the range of different habitats make this an interesting place to visit, particularly during the spring and summer. In spring the grasslands are yellow with the flowers of cowslip and primrose, whilst in the wetter areas the large glossy heads of marsh marigolds can be seen. Other notable plants early in the season include early purple orchid. Adjacent to the nature reserve, areas of wet woodland known as alder carr will be coming into leaf.

By summer the cocoons of spiders and moths can be found among the tall grasses. The grasslands thrive with betony, great and salad burnet, and common spotted orchid. In the marsh, blunt-floweered rush, oval and brown sedges, and marsh arrowgrass can be found among the cream sprays of meadowsweet, cerise ragged robin and prominent yellow flag iris. At ground, level, some spiders can be seen carrying parcels of young whilst others guard territories. Damselflies and day-flying moths can be seen in abundance on warm, sunny days.

Visitors should keep an eye overhead as buzzards are a regular sight. Look along the riverbank as signs of otter presence are frequent, though this shy mammal is only rarely seen. Barn owls can be seen at any time of the year hunting for voles, though are most active when feeding young in summer. Kingfishers are a regular sight along the river, joined in summer by an occasional common tern and in winter by goosanders. There is historical evidence of farming on site, with remnants of ridge and furrow to be seen in the grassland. Today, Yorkshire Wildlife Trust grazes the nature reserve with cattle to help encourage wildflowers.

The Trust also owns nearby Kirkham Wood (0.25 ha; Grid Ref. SE 734 656).

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Public Transport

Malton buses stop in Westow.


Six miles south west of Malton, two miles east of Kirkham Abbey and about one mile north of Westow. Park cars at the roadside opposite the entrance to church farm being careful not to obstruct either of the farm tracks. Walk down the farm track opposite the farm to the nature reserve. The Centenary Way footpath along the river passes through the site.


Want to see more of Jeffry Bog Nature Reserve before your visit? Have a look below.

Jeffry Bog Nature Reserve photos in our Flickr group


Nearby nature reserves

Wharram Quarry Nature Reserve
6 miles - Yorkshire Wildlife Trust
Strensall Common Nature Reserve
8 miles - Yorkshire Wildlife Trust
Calley Heath Nature Reserve
11 miles - Yorkshire Wildlife Trust

Nature reserve map

Reserve information

Onhams Lane
North Yorkshire
YO60 7NJ
Map reference
SE 762 666
Great for...
Best time to visit
Mar - Sep
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Opening Times
Open at all times
2.97 hectares

Public and permissive footpaths. The Centenary Way passes through the reserve skirting the river. Contact the Trust for disabled access information.
Walking information
Public and permissive footpaths.
Parking is limited at the roadside; please be careful not to obstruct either of the farm tracks.
Dogs must be on lead
Grazing animals
Cattle graze the pastures during the summer
Reserve manager
Yorkshire Wildlife Trust
Tel: 01904 659570