From BiblePortal Wikipedia

Fausset's Bible Dictionary [1]

One family of Canaanites ( Genesis 10:17;  1 Chronicles 1:15). A place N. of Phoenicia, called subsequently Caesarea Libani (at the base of Lebanon) from being Alexander Severus' birthplace; well known to the crusaders. Now Arka, two and a half hours from the shore; twelve miles N. of Tripoli; and five S. of Nahr el Kebir (Eleutheris). The ruins are scattered on a hill of about two acres, and on a plateau N. of it.

American Tract Society Bible Dictionary [2]

Descendants of Canaan, of the Zidonian branch, who settled a town, called Arka, at the northwest foot of Mount Lebanon,  Genesis 10:17;  1 Chronicles 1:15 . The ruins of Arka have been found by Burckhardt and others about fourteen miles northeast of Tripolis.

Kitto's Popular Cyclopedia of Biblial Literature [3]

Ark´ites,the inhabitants of Arka, mentioned in  Genesis 10:17;  1 Chronicles 1:15, as descended from the Phoenician or Sidonian branch of the great family of Canaan. This, in fact, as well as the other small northern states of Phoenicia, was a colony from the great parent state of Sidon. Arka, or Acra, their chief town, lay between Tripolis and Antaradus, at the western base of Lebanon, 32 R. miles from Antaradus, and 18 miles from Tripoli Burckhardt, in traveling from the north-cast of Lebanon to Tripoli, at the distance of about four miles south of the Nahr-el-keber (Eleutherus), came to a hill called Tel-Arka, which, from its regularly flattened conical form and smooth sides, appeared to be artificial. Upon an elevation on its east and south sides, which commands a beautiful view over the plain, the sea, and the Anzeyry Mountains, are large and extensive heaps of rubbish, traces of ancient dwellings, blocks of hewn stone, remains of walls, and fragments of granite columns. These are no doubt the remains of Arka; and the hill was probably the acropolis or citadel, or the site of a temple.