Later workings used small surface drifts to access the outcrop barrier, primarily for safety and drainage purposes. The southern section, where the thickest coal remained, was more productive but posed technical difficulties due to heavy timbering. Remnants of these later mining phases are still visible.

A tramroad, known as the Quidchurch tramroad, once served the site, following the outcrop line and running down an incline to the colliery entrance. Although part of it was covered by the Eastern United coal tip, the southern stretch remains traceable today. Several entrances were originally made through the southern outcrop to support active mining.

The southern outcrop where later drift entries and opencast activity occurred is still identifiable, along with sections of the historic tramroad

• 1855 W.F. Corbett
• 1860 H. Corbett
• 1875-1880 Quidchurch Coal Co.
• 1900 William Virgo Co.

Site originally worked the Coleford High Delf seam, closing around 1892, with all equipment and assets sold by auction. The original entrance was later obliterated by the development of Eastern United Colliery. In the years that followed, various small drifts were sunk along the outcrop to exploit remaining coal in the barrier left by earlier workings, and to prevent surface water ingress.

The seam varied significantly across the gale: in the north, it was as thin as 12 inches, while in the south, a remaining section of seam reached up to 9 feet thick. However, this thicker coal proved difficult to work due to the need for very large roof supports, which made timber handling a heavy and awkward task. Limited opencast mining took place in the mid-1980s, and as of 1998, free miners Nick Bull and Ray Ashley were still working the site.