“Nor

ther

n Pl

ains

Sta

tes”

, mod

ified

from

USG

S 19

76 p

ublic

atio

n N

atio

nal A

tlas

by R

egio

nal L

earn

ing

Proj

ect,

2009

.Re

sour

ce fo

r Tea

cher

Gui

de, f

or u

se w

ith th

e ed

ucat

iona

l DVD

Trib

al P

ersp

ectiv

es o

n Am

eric

an H

istor

y on

the

Gre

at P

lain

s –

Upp

er M

issou

ri Ri

ver E

ditio

n.

Northern Plains States map (USGS)