While some zipline operations close for the cold season, others are just heating up.

Just a half hour from I-70, one big winter zip line awaits near Leadville, Colorado, the highest incorporated town in America. The Top of the Rockies zip line starts at 11,500 feet and features dual zip lines running up to 850 feet long.

As you soar over powder-coated mountains you can see some historic gold mine remnants and views of Collegiate Peaks mountain range, home to the highest mountain in Colorado. You can add a snowmobile tour to your zip as well.

Not far from the big city, Denver Adventures offers a winter zipline adventure November through February. Tours take place just 30 minutes from downtown Denver. But bundle up, because these zip lines are perched 250 feet off the ground and speed up to 60 miles per hour.

The longest wire run is a lengthy 1,900 feet, more than double what many zip lines average. The outfitter offers between 4- and 8-line high-flying rides, plus sunset and combination activity packages. You can even add the “zip and sip” option to taste some of Colorado’s best microbrews after your adventure.

Another place to find exciting aerial adventures is at the ski resorts. With over 25 ski and snowboard areas in Colorado, it’s only a matter of time until more catch on to the zipline trend and add this alternative adventure to the wintertime docket. It’s a breathtaking way to see snow-capped peaks from a whole new perspective.

For a resort zip line that’s off the beaten path, head down to southwest Colorado’s iconic town of Crested Butte. The local ski resort hosts on-mountain canopy-style zipline tours throughout the winter.

This five-zipline setup delivers wire rides from between120-400 feet, all connected by suspended wooden bridges and towering platforms. The 1.5-hour zip adventures are guided by local pros. It’s a fun and affordable add-on to a ski day, an alternative for kids or family members who don’t ski, or a standalone activity for taking in sweeping views of Crested Butte.

These are just a few of the zip lines that operate during the winter in Colorado. With the speedy expansion of the high-flying activity, you can bet that before long there will be wire rides around every mountain in the state.