Free, yet in chains, the mountains stand. J. Montgomery. [Christian Union.] Written for the Sheffield Sunday School Union, Whitsuntide gathering, 1837, and printed on a flyleaf for that occasion, [M. MSS.] It was included in his Original Hymns, 1853, No. 154, in 6 stanzas of 4 lines, and headed, "Christian Union symbolized by Natural Objects." In the Scottish Evangelical Union Hymnal, 1878, it begins, "Free, though in chains, the mountains stand." This reading is found in some copies of the Original Hymns, but is not the original text.
--John Julian, Dictionary of Hymnology (1907)