More than three dozen state troopers are standing by at the state Capitol this hour, anticipating the arrival of up to 2,000 students showing their support for immigrant rights.
Master Trooper Ron Watkins says the Patrol expects students from as many as 14 high schools to leave classes for the rally, and troopers will work to maintain order.
The students have voiced opposition to what they call "punitive" legislation being considered in Congress.
Tenth grader Christina Garcia says the students love America and want to stay, but that some of the proposed laws would force their parents out of the country and the teens would have to leave, too.
The walkout is the latest in a series of rallies nationwide seeking more immigrant-friendly policies.
Students started planning the coordinated walkout following a pro-immigration rally in Denver last month, which drew an estimated 50,000 people.