Closed for Winter RE-OPENS MARCH 5TH DELTA, FORT COLORADO UNCOMPAHGRE INTERPRETIVE CENTER Private Tours and Functions still available. 970.874.0923 ext. 421 thefort@cityofdelta.net Closed for Winter RE - OPENS MARCH 5TH DELTA , FORT COLORADO UNCOMPAHGRE INTERPRETIVE CENTER Private Tours and Functions still available . 970.874.0923 ext . 421 thefort@cityofdelta.net