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1
Alvin Yates Tax deed 1903 Mar. 3
2
Richmond group of mines in Boulder County, Colorado leases 1939 Dec. 15
4
Gold Hill Mining District mining claims abstracts of title report 1935 June 4
5
Richmond group of mines in Boulder County, Colorado leases 1936-1938
6
Baltimore mine (Gold Hill Mining District, Colo.) printed materials 1897-1939 (bulk 1935)
8
Mining claims west of Boulder (Colo.) papers [1901-1950]
9
W.B. LeVeque financial papers [190-]-1945 (bulk 1905-1925)