The James River Park System - Richmond, VA

10 of 10 • start over

South Geology Tour

Stop 10: Stains and Strains

DIRECTIONS: Walk about 18 m (20 yd) towards the middle of the river channel under the access bridge to Belle Isle. Note the unique pattern of thin lines in the rocks. (37.526670° N, 077.453553° W)

This striated pattern is called GNEISSIC BANDING. When the rock was under extreme pressure, the minerals realigned themselves in bands that ran perpendicular to the direction of stress.

stains and strains in rock

By this time, you may feel stress as well! This is the end of the tour. Turn around and retrace your steps back to the parking lot, OR, search for more geologic features that you have learned about during your tour.

Find this mystery rock!

Can you find this rock formation? It contains several of the features we have shown you ...


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