Brent Tor

Brent Tor is an unusual example of early Carboniferous basaltic volcanic rocks, now weathered down.

[1] It is composed of volcanic breccia and pillow lava exuded beneath a former sea.

[3] Unusually, the fortifications are at the base of the Tor, rather than the summit as is more normal (compare with Brent Knoll in Somerset).

However, the northern ramparts in particular are well preserved, displaying a multi-vallate pattern characteristic of the Iron-A, or early -B, culture.

[5] At one point, the church may have been used as a Beacon tower, used to spread word of enemies seen out to sea (see also Spanish Armada).