Chapter 12 & 13 notes People started moving to the Far West in the 1830s and 1840s -caused some border disputes Maine and New Brunswick -old dispute 1842 Webster-Ashburton agreement -gave over 1/2 of the disputed territory between Maine and New Brunswick (7,000 acres) to the U.S. and established a definite northeastern border between the U.S. and Canada However, In Oregon . . . -both U.S. and Great Britain laid claim to it between Rockie Mountains and the Pacific from 42 degrees N to 54?40? or northern California -had a joint occupation since 1818 -hardly anyone lived there until 1840 1842 many immigrants started moving to Oregon for different reasons -to get away from the hard times in the east caused by the Panic of 1837