Harleigh, Pennsylvania
Harleigh Coal Company mined the 30' thick Mammoth vein of anthracite coal in the 1860s and 1870s on a lease from Big Black Creek Improving Co. Slope No. 2 was opened in 1862 and Slope No. 3 in 1867. By 1875 there were two breakers and two slope portals at Harleigh. However, the Harleigh mine was poorly maintained and, in 1877, the mine caved in and entombed two miners. McNair & Co. was listed as the operator of Harleigh in 1878. By 1885, the stream above the mines was inundating Harleigh, which also flooded the neighboring Ebervale mine. The state ordered the operator to suspend operations, and Harleigh Colliery closed in 1886. After being idle for many years, G.B. Markle Co. reopened the Harleigh mine in 1907-08, including a new breaker. In these years Jeddo Highland Coal Co. also built their Jeddo No. 7 breaker at Harleigh. In the 1910s, Harleigh Brookwood Coal Co. operated the Buck Mountain, Fish Tail, and Spear Point slopes at Harleigh. By 1931, Harleigh Brookwood had closed the Harleigh mines and moved on to new coal reserves in Schuylkill County.
In later years, Harleigh was home to Jeddo-Highland Coal Co. No. 7.