Golden, Colorado by John Hopkins | Tue, 29 Sep 2020 16:09:00 -0600 | image Martin Marietta Aggregates with the famous I-70 roadcut cutting through Dinosaur Ridge in the background in Jefferson County, Colorado, September ©2020 hopkins/neoscenes.
Martin Marietta Aggregates with the famous I-70 roadcut cutting through Dinosaur Ridge in the background in Jefferson County, Colorado, September ©2020 hopkins/neoscenes.
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