Topographic
Map of Dairy Farms
What do the colors represent on this U.S. Geological
Service map?
[If you need help, see
legend. For even more information,
go to
USGS.]
What
physical
(environmental) features are shown?
What human-built structures are shown?
[Look at a close-up of a dairy
farmstead.]
Answers:
- green -- forests and woods
- white -- open fields (row crops of corn, hay, and pasture) [Look
at
a photo of a dairy landscape with its strip
cropping (brown corn and green alfalfa) to reduce soil erosion through run off
of rain water when the fields are freshly plowed.]
- blue -- water
- brown -- contour lines show elevation
- environmental features: lakes, swamps, hills, gravel pits
- human features: houses, barns, field boundaries, roads, section numbers,
township name
Optional:
1) read
an article on the dairy landscapes of the Upper
Midwest and
2) read another one on dairy
farming, now and in the future, in Los Angeles.
Created by Ingolf Vogeler on 30 April 1996;
last revised on
07 March 2005.
