Wet, Wild, and Dirty

Map interpretation and Watersheds

 

Obtain a 7.5 minute USGS topographic quadrangle (quad) for Bothell and Mt. Rainier East and respond to the following:

 

Choose one of the maps and answer the following:

 

1.  What is the scale of this map?  What does it mean?

2.  What is the contour interval?  What does this mean?  How are contours shown on the quad?

3.  What direction is north on the map?

4.  When was the map originally constructed?  Was it ever revised?  How are revisions depicted?

5.  Examine both maps.  Is there anything cartographically different on the Mt. Rainier map other than the location and features shown?

On the Bothell quad:

6.  Locate campus..

7.  Identify several elevation(s) on campus and record.

8.  Determine the elevation change (called relief ) of campus and record (subtract highest elevation from lowest).

9.  Locate North Creek

10.  How would you characterize the shape of North Creek through campus?  Where is the wetland?

11.  On the accompanying sheet (with simplified topo map and blank graph underneath), construct a profile of the map.  Do this by marking the elevation on the graph directly under the corresponding map location.  Connect the points with a line to complete the profile.

12.  Label the river on the profile.  What feature divides the river’s watershed from the adjacent watershed?

13.  On the accompanying photocopy of the NE corner of the Bothell quad, locate Bear Creek (reference the actual quad in color as necessary).  Trace Bear Creek upstream to its headwaters.  Locate the east branch of the creek at the headwaters.  Draw the watershed boundaries for the east branch directly on the map photocopy.