“Cheyenne Mountain Zoo has called upon Sigma Metals for over a decade to renovate, repair and improve upon our elephant facility. Whether it’s as simple as moving a public railing or as demanding as designing, fabricating and installing an elephant barrier they have always provided the highest quality of work. Sigma Metals staff from the office to the field continually strives to meet the customer needs and has always been flexible working around the animals and the zoo’s special requirements.”