Traffic was flowing smoothly through Colorado Springs as the morning rush hour ended Monday. But further north on Interstate 25, the solar eclipse was causing a traffic nightmare, the Colorado Department of Transportation said.
"Just got a report from Wyoming there is a 10-mile backup on I-25 near Glendo.," the agency said on Twitter. "Also, a stalled vehicle near Mead is causing backups as well."
Traffic was expected to tangle in northern Colorado and Wyoming through the 11:47 a.m. eclipse and could get worse headed south after the sun emerges from the moon's shadow.
The snarls on Interstate 25 prompted Colorado Gov. John Hickenlooper to encourage eclipse-lovers to enjoy the event closer to home.
"Be careful out on I-25 if you're heading to see the eclipse out of state!," the Democrat said on Twitter. "Remember, there are events all over CO!"