Figure 3. Index map for the Missouri River showing county boundaries, 50,000-m UTM grid and
100,000- 100,000-m boxes. The projection is UTM zone 15.
River notebooks
souri River. The map shows the counties in the
For each river, a notebook was created that
contained index maps and the 20,000- 20,000-m
spatial database, a 50,000-m UTM grid and
100,000- 100,000-m boxes drawn along the river
maps. At the beginning of each notebook, an in-
and labeled according to their location on the
dexed map defined the area of interest along the
map.
river. Figure 3 shows the index map for the Mis-
8