1857
Colton, J. H.
1:507k
1867
Mitchell, D.T.
1:589k
1861
Gunnison, J.W.
1:760k
1877
Thompson, Thos. H.
1:32k
1850
Mitchell, Samuel Augustus
1:2m
1859
Warren, Gouverneur Kemble, 1830-1882
1:1m
Colton, G. W. & C. B.
1876
U.S. General Land Office
1885
Page, H.R. & Co.
