Yule Marble Railroad, Unknown Soldier Slab, largest ever Published February 22, 2018 at 428 × 240 in About Colorado Yule Marble ← Previous Next → The History of Quarrying Colorado Yule Marble martincooney.com Photographs "capture a moment that's gone forever, impossible to reproduce.” Ansel AdamsTwitterTumblrPinterestEmailPrintFacebookMorePocketRedditWhatsApp