Masty Quarry, Stone quarry in Bílý Újezd, Czech Republic.

Masty Quarry in Bílý Újezd is a stone extraction site in the Pardubice region. Its steep walls expose multiple layers of rock that reveal the geological composition typical of this area.

The quarry was founded in 1902 by the Opočno district council to produce crushed gravel for district roads, and a road to Bílý Újezd was built from it. Mining began on the slope below the former Vitenčov mill and later expanded in all directions. The 1998 flood destroyed the bridge in the southern part of the site and damaged the mill so badly that it was demolished.

The quarry's Czech name, Lom Masty, comes from the village of Masty, and the site was opened by the Opočno district council in 1902 to produce crushed gravel for district roads. A road to Bílý Újezd was built from the quarry at that time. The former Vitenčov mill stood within the quarry area until the 1998 flood damaged it beyond repair and it was demolished.

The quarry lies one kilometre east of Masty village; a road to Bílý Újezd was built from it in 1902. It is an active mining site, so follow safety markings and keep to designated areas. The Zlatý potok divides the site, and a 9 m waterfall formed where the slope was cut.

The rock walls display distinct geological layers that allow researchers and students to study regional formations directly at the site. This natural exposure provides rare insights into the deeper geological history of the area.