Sleepy Hollow Sports Park's new all-season tubing hill is expected to return this spring after a bumpy start that closed it shortly after its grand opening last year. The 76-acre Sleepy Hollow ...

Sleepy Hollow was bought by Polk County Conservation in 2021. The county reopened the park over Memorial Day weekend this year, launching the largest all-weather tubing hill in the world. "Hang tight.

Sleepy Hollow was bought by Polk County Conservation in 2021. The county reopened the park over Memorial Day weekend this year, launching the largest all-weather tubing hill in the world. "Hang tight.

The 76-acre Sleepy Hollow park, 4051 Dean Ave. in Des Moines, has been a central Iowa favorite for tubing and sledding in the winter and for Renaissance fairs, festivals, comedy shows and concerts ...

The 76-acre Sleepy Hollow park, 4051 Dean Ave. in Des Moines, has been a central Iowa favorite for tubing and sledding in the winter and for Renaissance fairs, festivals, comedy shows and concerts ...

It's the opening weekend for tubing at Sleepy Hollow's all-weather SnowFlex hill. "Fly down the giant 600-ft. slope on Sleepy Hollow tubes," Sleepy Hollow's website says.

Police spokesman Sgt. Kevin Watts told the Arizona Republic that the hollow steel tube acted like a megaphone, allowing the patrol officer to hear him from a quarter-mile away.

In a case study conducted by the Steel Tube Institute, to build the same five-story commercial structure, 89.8 tons of HSS is needed, compared to 139.4 tons of wide flange steel, as one example.

Sleepy Hollow opens world's largest all-weather hill to tubing for season Polk County Conservation said the hill was the first part of a project to renovate the whole park and make it more all-season.