PDF version This investigation will help you to: Learn more about topographic and geologic maps. Find a topographic map of your area. Find a geologic map of your area. To learn more about topographic and geologic maps, visit the following web sites: How to Find a Map To complete Investigation Step 2, you will need a topographic map of your area: How to Find a Map To complete Investigation Step 4, you will need a geologic map of your area: How to Find a Map AGI/It's About TIme