The beck is 15.5 miles ( 24.9 km ) long .
The beck has a total catchment area of 80 square kilometres ( 31 sq mi ) , which drains the area around Harrogate .
The beck is 15.5 miles ( 24.9 km ) long , and has a total catchment area of 80 square kilometres ( 31 sq mi ) , which drains the area around Harrogate .