Your last-minute Utah guide to the annular solar eclipse

State of play: The moon will pass between the sun and Earth while it is at its farthest point from Earth, per NASA.

• Because the moon is so far from Earth, it appears smaller than the sun and doesn't completely cover it — creating the "ring of fire" effect.

Details: The eclipse will first be visible at the Nevada border at 10:24am and reach the Four Corners 11 minutes later.

• It'll last anywhere from about 90 seconds t0 4 minutes, 40 seconds, depending on how close you are to the center of the moon's shadow.
• The center will follow a line from near Gandy in Millard County to Mexican Hat in San Juan County.

Zoom in: The whole "Ring of Fire" will be visible from a path that runs from about West Wendover to Monticello at its northern edge, and from the southwest corner of Millard County to Lake Powell's Wahweap Bay in the south.

• That includes a whole lotta usually-empty land — but plan for big crowds.

Of note: The Utah Department of Transportation expects 300,000 visitors in central and southern Utah, with the biggest crowds in Richfield and Mexican Hat. Plan for hours of traffic delays after the eclipse.

• Meanwhile, two universities and 23 Utah school districts are on fall break this weekend, which also will drive up tourism.

Worth your time: Arches, Bryce Canyon, Canyonlands, Capitol Reef and Glen Canyon national parks and rec sites have issued crowd rules and viewing advice.

• FOX13 has a list of watch parties across the state.

Be smart: Erin, here! My family made it to Idaho for the "zone of totality" in 2017, and there are a few things worth knowing.

• It's hard to photograph. Skip the pics unless you're a pro.
• Bring the colander. If it's cloudy, you can still be Rick Moranis from "Ghostbusters."
• OMG, get the special glasses. Otherwise, make a pinhole projector.
• You will have Cat Stevens and Bonnie Tyler stuck in your head for months.