According to Richard Hauck, the settlement of Angola was spelled "Angelah" in the original 1830 edition of the Book of Mormon, p. 520. [F. Richard Hauck, Deciphering the Geography of the Book of Mormon, p. 105]
“It Came to Pass That We Did Come to the City of Angola”
Apparently from a location "in the borders of Zarahemla, by the waters of Sidon," the Nephite army "did come to" the city of Angola as the Nephite "armies" "began to retreat towards the north countries (Mormon 2:3). Notice that possibly soon after this, the location of the Nephite armies is described as being "in the borders west by the seashore" (Mormon 2:6). Thus, geographically speaking, the "retreat towards the north countries" was apparently not in a direct line due north.
According to John Sorenson, since Angola and the land of David appear as stopping places on the way from Zarahemla to the west coast (Mormon 2:4-6) near the narrow pass or narrow passage (Mormon 2:29; 3:5), they would lie north-westward, in Nephite terms, from the land of Zarahemla. From central Chiapas (Sorenson's proposed land of Zarahemla) the normal way to reach the Pacific coast leads west from the upper Grijalva/Sidon River through the Cintalapa Valley to the passes over the wilderness mountain strip above Arriaga. (The Lamanites had followed the same route in reverse in their early attacks on Ammonihah and Noah -- Alma 16:2, 49:1-14). Angola and David were probably along that route somewhere, although the brevity of Mormon's record denies us enough information to pin down the places definitively. The city of Angola likely was at or near the site of Mirador, identified earlier as Ammonihah. [John L. Sorenson, An Ancient American Setting for the Book of Mormon, p. 338] [See Geographical Theory Maps]