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Directions from Denver International Airport

(Total trip time 35-50 minutes, depending on traffic)

Exit the airport south on Pena Boulevard, following signs for Interstate 70. Take I-70 west for approximately 10 miles to Interstate 25. Take I-25 south (following signs to Colorado Springs) for approximately 4.5 miles to 6th Avenue. Take 6th Avenue west for approximately 5.5 miles to Kipling Avenue. Take Kipling Avenue south to the second light at Gate 1 of the Denver Federal Center. Turn right into Gate 1. Be prepared to show picture identification at the gate. After clearing security, drive through the gate straight ahead (the road curves somewhat to the left) to the second stop sign. Turn left. As you turn you will see the first in a series of forest green signs (with white writing and a maroon top band) that will guide you around Building 810 to NICL. Follow these signs to Door S25. Parking is unrestricted.

Directions from Boulder, CO

(Total trip time 40-50 minutes, depending on traffic)

Take Broadway south out of Boulder. It becomes State Highway 92 and continues into Golden, eventually becoming 6th Avenue eastbound. Passing under Interstate 70, continue on 6th Avenue eastbound out of Golden to the Kipling Avenue south exit. Take Kipling Avenue south to the second light at Gate 1 of the Denver Federal Center. Turn right into Gate 1. Be prepared to show picture identification at the gate. After clearing security, drive through the gate straight ahead (the road curves somewhat to the left) to the second stop sign. Turn left. As you turn you will see the first in a series of forest green signs (with white writing and a maroon top band) that will guide you around Building 810 to NICL. Follow these signs to Door S25. Parking is unrestricted.