Oasis State Park 1985 Provisional
PDF (7.6 MB)
USGS - Historic Quads
Oasis State Park 2010
PDF (16.7 MB)
USGS - US Topo
Oasis State Park 2013
PDF (23.0 MB)
Oasis State Park 2017
PDF (21.2 MB)
Portair
1:62,500
Clovis
1:250,000
Saint Vrain
Portair SW
Oasis State Park
Midway
Bethel
Portales
Arch NW