 Plas Uchaf was later the home of John Jones Maesygarnedd, a prominent Republican in the Wars of the Three Kingdoms, and one of the regicides of Charles I.

Offa's Dyke Path passes through the area, and Eglwyseg is also popular with rock climbers, with around 800 routes, both sport and traditional.Eglwyseg is one of the few sites where the Whitebeam "Sorbus anglica" is known to grow, and one of only three sites where the Welsh Hawkweed ("Heiracium cambricum") has been recorded.The rare Limestone Oak Fern "Gymnocarpium robertianum" and Rigid Buckler-Fern "Dryopteris submontana" have also been recorded here.