Tiger map database: US Census
BASIN Map based data displays are presented on background Boulder
Creek Watershed map images obtained from the US Census Department online
Tiger Map Database. General information on the Tiger Map Database
system and a selection of preconfigured local area maps are available
from this page.
General instructions on tiger WWW database use
Good county coverage
Removing majroads improves stream channel representation
Greater watershed
Larger and closer to boundaries
Larger and more closely clipped to confluence
Boulder Centered overview
Boulder center and slightly reduced
More Boulder centric:
Closer view of the city:
Louisville #1
Louisville #3
Louisville #2
Superior #1
Superior #2
Superior #3
Erie #1
Erie #2
Erie #3
Layer Options:
The arguements
- on=layer,layer
- off=layer,layer
forces individual feature layers to be displayed, or not displayed, respectively. These fields override, but don't replace, the natural layer selection (i.e. layers not mentioned may still be displayed or not, depending on the default scheme). The following layer names are valid:
- GRID (graticule, along with margin labelling)
- BACK (blue background)
- CITIES (labels on places)
- states (state boundaries, which also form white land fill over BACK)
- counties (county boundaries)
- places (cities and towns)
- majroads (expressways and other highways)
- streets (normal streets-don't turn this on when zoomed way out)
- railroad (railroads)
- water (water bodies, including linear streams and areal features)
- shorelin (lines bordering areal water bodies)
- miscell (miscellaneous features, including parks and schools)
