Your search for ""USGSSE42-120"" revealed the following:

~ Lakeview OR topo map, 1:100000 scale, 30 X 60 Minute, Historical, 1975, updated 1994

~ Collins Rim OR topo map, 1:24000 scale, 7.5 X 7.5 Minute, Current, 2014

~ Collins Rim OR topo map, 1:24000 scale, 7.5 X 7.5 Minute, Historical, 2011

~ Collins Rim OR topo map, 1:24000 scale, 7.5 X 7.5 Minute, Historical, 1968, updated 1972

~ Collins Rim OR topo map, 1:24000 scale, 7.5 X 7.5 Minute, Historical, 1968, updated 1983

~ Collins Rim OR topo map, 1:24000 scale, 7.5 X 7.5 Minute, Historical, 2004, updated 2007

~ Klamath Falls OR topo map, 1:250000 scale, 1 X 2 Degree, Historical, 1955, updated 1972

~ Klamath Falls OR topo map, 1:250000 scale, 1 X 2 Degree, Historical, 1958, updated 1958

~ Klamath Falls OR topo map, 1:250000 scale, 1 X 2 Degree, Historical, 1958, updated 1958

~ Klamath Falls OR topo map, 1:250000 scale, 1 X 2 Degree, Historical, 1955, updated 1972

~ Klamath Falls OR topo map, 1:250000 scale, 1 X 2 Degree, Historical, 1955, updated 1968

~ Klamath Falls OR topo map, 1:250000 scale, 1 X 2 Degree, Historical, 1955, updated 1963