Exstrom Laboratories LLC
February 2, 2021 ―- Archive
License: Creative Commons Attribution 4.0 International License.
Here is quartz rock found near Point 7201 in the foothills of Boulder County, Colorado. This picture was taken on February 28, 2019.
Equipment used: Canon EOS Rebel T5i with a standard zoom lens (EF-S 18-55 mm).
Richard Hollos and