Top Results for Pothole

Gaping Gill is a prominent natural pothole and cave system located on the slopes of Ingleborough in North Yorkshire, England. It is distinguished by its massive 98-metre vertical entrance shaft, which is the largest unbroken underground shaft in Britain. At the base of this shaft lies the Main Chamb...

Benton Lake National Wildlife Refuge is a protected wetland and prairie area near Great Falls, Montana, managed by the U.S. Fish and Wildlife Service. President Herbert Hoover designated Benton Lake as a refuge and breeding ground for birds in 1929, while major water-control works were constructed b...

Cayler Prairie State Preserve is a 160-acre native prairie in Dickinson County, Iowa, on the western edge of the Des Moines Lobe landform region. It was designated a National Natural Landmark in 1966 and dedicated as a state preserve in 1971. Surveys have recorded 225 native plant species, including...

Doolittle Prairie State Preserve is a 36-acre natural area located in Story County, Iowa. It protects a vital fragment of wet mesic tallgrass prairie that once covered the Midwestern plains before European settlement. The preserve serves as a crucial habitat for local wildlife, including populations...

Eldon Hole is a large natural pothole near Castleton in Derbyshire, England. The feature consists of a deep, open vertical shaft formed in the limestone landscape of the Peak District. It has traditionally been described as about 70 metres deep and was historically included among the Seven Wonders o...

Alum Pot is a large limestone shaft and cave feature near Selside in the Yorkshire Dales of England. The pothole forms a deep vertical entrance into an extensive underground system, with water and geological erosion contributing to the surrounding karst landscape. It is used by experienced cavers fo...

Lost John's Cave is a cave system in the Yorkshire Dales of northern England. It has several entrances and is known among cavers for an underground route that connects different parts of the system through shafts, passages, and underground stream sections. The cave is associated with challenging pot...

Rowten Pot is a stream cave and vertical entrance in Kingsdale, in the Yorkshire Dales of North Yorkshire, England. It is formed in Carboniferous limestone and provides access to part of the cave system that drains Kingsdale. The entrance includes a substantial shaft, and the system is known for pit...

Sell Gill Holes are two adjacent pothole entrances in Ribblesdale, within the Yorkshire Dales of northern England. The larger entrance descends through a shaft of roughly 55 metres and leads to an underground streamway. A passage connects the two entrances, making the site significant to British cav...