Erwin, South Dakota, 7.5-minute Quadrangle

Editions

• 

  Erwin 1968/1970

  PDF (9.2 MB)

  USGS - Historic Quads

• 

  Erwin 2012

  PDF (12.6 MB)

  USGS - US Topo

• 

  Erwin 2015

  PDF (20.0 MB)

  USGS - US Topo

• 

  Erwin 2017

  PDF (41.3 MB)

  USGS - US Topo

Related quadrangles at other scales

• 

  De Smet

  1:100,000

• 

  Watertown

  1:250,000

Neighboring quadrangles

Cherry Lake	Bryant	Gertson Slough
De Smet	Erwin	Lake Preston NE
De Smet SE	Lake Preston West	Lake Preston East