WETMAAP Skill 2
Mobile Bay: Fresh Water Inflow Element 1

Skill 2: Scale Determination
Element 1: Introduce Scale of Map

Materials:

1:24,000 scale USGS map
ruler

Exercise:

1. Use 1:24,000 scale USGS map

2. Examine scale at bottom of page

3. Measure distance across study site from west to east

How many inches is the distance west to east?

4. Place the ruler over bar scale (bar scale measurement in feet).

How many feet equals the measured map distance across the site?

5. Repeat measurements across the site from north to south.

How many inches is the distance north to south?

How many feet equals the measured map distance across the site?