Acker Rock 1989
PDF (15.6 MB)
USGS - Historic Quads
Acker Rock 1998/2000
PDF (17.1 MB)
Acker Rock 2011
PDF (28.1 MB)
USGS - US Topo
Acker Rock 2014
PDF (38.9 MB)
Acker Rock 2017
PDF (27.5 MB)
Quartz Mountain
1:62,500
Diamond Lake
1:100,000
Roseburg
1:250,000
Taft Mountain
Twin Lakes Mountain
Dumont Creek
Acker Rock
Buckeye Lake
Pickett Butte
Butler Butte
Abbott Butte