Bog iron ore is common on the north-east side of the lake, and is worked.
"The Mirror of Literature, Amusement, and Instruction" by Various
IRONWORKING AND THE ROASTING OF BOG ORE FOR IRON.
"New Discoveries at Jamestown" by John L. Cotter
As Meshach Milburn thought of these things he took up a portion of the bog ore from the hearth.
"The Entailed Hat" by George Alfred Townsend
Bog-iron ore appears often to have originated in this way.
"Peat and its Uses as Fertilizer and Fuel" by Samuel William Johnson
Minerals are granite bowlders, and bog iron ore.
"A New Guide for Emigrants to the West" by J. M. Peck
Bog-ore, to be spoken of as bog ore, is abundant, and manganese is known to exist in large quantities.
"Ireland as It Is" by Robert John Buckley (AKA R.J.B.)
Some of the most valuable deposits of iron ore have accumulated in bogs fed by iron-impregnated spring water.
"Earth and Sky Every Child Should Know" by Julia Ellen Rogers
Bog iron-ore, whence derived, 722.
"Principles of Geology" by Charles Lyell
Ehrenberg, Prof., on bog-iron ore, 26. on infusoria, 24.
"A Manual of Elementary Geology" by Charles Lyell
Large tracts of bog ore are found in townships 38 to 41, ranges 16 to 19.
"Fifty Years In The Northwest" by William Henry Carman Folsom