Materials:

            1:24,000 scale Lundy/Negit Island/Mount Dana/Lee Vining Topographic Quadrangle

            (2) 11”x 17” clear film overlay

            drafting tape

            Colored marker pens: Red, Blue, Brown

Exercise:

1.          Use the 1:24,000 scale Lundy/Negit Island /Mount Dana /Lee Vining Topographic Quadrangle.

2.          Use clear film 11”x 17”overlay.

3.          Tape clear film overlay on top of 1:24,000 scale map.  Tape at the top edge.

4.          Use the Blue pen.

5.          Use the Blue pen to make four “corner marks” (tick mark 2) on the overlay, one at each corner of the study site.

6.          Trace the shoreline of Mono Lake in Blue on the overlay.

7.          At the bottom of the overlay (in blue) draw a short horizontal line and label beside it “1994 Shoreline.”

   Hint: Use of a symbol with a short description beside it is a “key,” or means of identifying selected features.

 8.          Remove the “1994 Shoreline” overlay.

9.          Use a second 11” x 17” clear film overlay.

10.      Tape the film overlay on top of the 1:24,000 scale USGS Lundy/Negit Island /Mount Dana /Lee Vining Topographic Quadrangle.  Tape at top edge.

11.      Use the Red pen.

12.      Use the Red pen to make four  “corner marks” (tick mark) on the overlay, one at each corner of the study site.

13.      Trace all primary and secondary roads in Red on the overlay.

14.      At the bottom (in red) draw a short horizontal line the same length as the blue line and label it  “Roads.”  

15.      Remove the “Roads” overlay.

16.      Use the third 11” x 17” clear film overlay.    

17.      Tape the clear film overlay on top of the the 1:24,000 scale USGS Lundy/Negit Island /Mount Dana /Lee Vining Topographic Quadrangle.  Tape the top edge.

18.      Use the Brown pen.

19.      Use the Brown pen to make  four  “corner marks” (tick mark) on the overlay, one at each corner of the study site.

20.      Using a dashed line (- - - ), trace the 6,400 foot index contour line on the overlay.

21.      At the bottom (in brown) make a dashed line and label it “Index Contour”.

Hint: Combining several single “key” items creates a “legend.” Every map should have a legend

          22.      Tape the “Shoreline” and “Roads” overlays one on top of each other, over the      “Index Contour” overlay.  Use the four corner marks to line-up

                  (“register”) the overlays on top of each other.

             Hint: Tape one overlay at the bottom edge and the other overlay at the left or right edge.  By attaching the overlays at opposite edges, you can flip the overlays up and down in various alignments. You have created a manual GIS.