Charlie Billups:
Bluff at the Illinois River
Charlie Billups:
Buffalo Rock Prairie II
Charlie Billups:
Buffalo Rock Prairie
Charlie Billups:
Fall Berries
Charlie Billups:
Fall Foliage at Buffalo Rock
Charlie Billups:
Fall foliage III
Charlie Billups:
Fall Foliage V
Charlie Billups:
Fall Walk II
Charlie Billups:
Fall Walk III
Charlie Billups:
Fall Walk IV
Charlie Billups:
Fall Walk V
Charlie Billups:
Fall Walk VI
Charlie Billups:
Fall Walk VII
Charlie Billups:
Fall Walk
Charlie Billups:
Grasses
Charlie Billups:
Illinois River II
Charlie Billups:
Illinois River III
Charlie Billups:
Prairie V
Charlie Billups:
The trail
Charlie Billups:
Trail II
Charlie Billups:
Trail V
Charlie Billups:
Trail VI
Charlie Billups:
Trees
Charlie Billups:
Wood