![USGS on Twitter: "A dramatic sinkhole collapse from 2010 in Guatemala City 300 feet (100 meters) deep. http://t.co/8eIKGmTL38 http://t.co/pBFwdFrh7j" / Twitter USGS on Twitter: "A dramatic sinkhole collapse from 2010 in Guatemala City 300 feet (100 meters) deep. http://t.co/8eIKGmTL38 http://t.co/pBFwdFrh7j" / Twitter](https://pbs.twimg.com/media/Byx8UXxIUAElkgB.jpg)
USGS on Twitter: "A dramatic sinkhole collapse from 2010 in Guatemala City 300 feet (100 meters) deep. http://t.co/8eIKGmTL38 http://t.co/pBFwdFrh7j" / Twitter
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Amazon.com : BlueNatHxRPR 4.0 mm/0.155 Inch 3 Pound 300 Feet /91 Meters Length Round Spool String Trimmer Line Weed Eater Line : Patio, Lawn & Garden
American Geophysical Union (AGU) - Step into the abyss...or send an ROV. The Czech Republic's Hranice Abyss is more than twice as deep as researchers thought. https://eos.org/research-spotlights/worlds-deepest-freshwater-cave-may-be-a-kilometer-deep ...
![Clim8 on Twitter: "The largest wind turbine in the world is nearly 900 ft tall and each blade is more than 300 ft long. The turbine has a capacity of 12 megawatts ( Clim8 on Twitter: "The largest wind turbine in the world is nearly 900 ft tall and each blade is more than 300 ft long. The turbine has a capacity of 12 megawatts (](https://pbs.twimg.com/media/Eh266GsXsAAawdm.jpg)