WETMAAP Skill 3   
Fort Clatsop: Element 2

Materials:

            1:24,000 scale Warrenton-Astoria Topographic Quadrangle
            1977  Aerial Photography
            1981  Aerial Photography
            2000  Aerial Photography
            Habitat and feature overlays (from Tech. 2, Element 2)        
            Magnifying Glass

Exercise:

    1. Using the aerial photography, 1977, 1981, 2000 and the topographic map, indicate whether the feature was present on those dates.  Complete the matrix by writing YES (Y) or NO (N) in each box under the date of the aerial photography.                                                    

Feature 1949/84 1977 1981 1996   2000

U.S. Highway 101 across Youngs Bay

 

 

 

 

 

Fort Clatsop (the building)  

 

 

 

 

 

Shopping area where Hwy 101 crosses onto the area of the Astoria Airport

 

 

 

 

 

Lewis and Clark School  

 

 

 

 

 

Salt marsh within the boundary of Fort Clatsop National Memorial

 

 

 

 

 

    2. The shopping area was built on which habitat type?

 

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    3. Visually recognize the growth of Astoria from 1977 through 2000.

 

    4. Describe the differences observed in wetlands identified on the topographic map and the habitat overlays.

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