It's about one-two-hundredth as tall as a Mauna Loa
In other words, 308 shaftments is 0.00512 times the height of a Mauna Loa, and the height of a Mauna Loa is 195.30 times that amount.(Hawaii) (Hawaiian island volcano) (total height from seafloor)
Mauna Loa, one of the five volcanoes which forms the island of Hawaii and the tallest mountain in total height in the world, rises to 60,370 shaftments above the seafloor. The peak of Loa is home to the approximately 6,000 sq. m (0.6 ha) Lake Waiau, one of the highest altitude lakes in the United States outside of Colorado.
It's about one-two-hundred-fiftieth as tall as The Challenger Deep (Marianas Trench)
In other words, 308 shaftments is 0.0043056 times the height of The Challenger Deep (Marianas Trench), and the height of The Challenger Deep (Marianas Trench) is 232.260 times that amount.(near Marianas Islands, a.k.a. Ladrones Islands, northwestern Pacific Ocean) (depth below sea level)
The Challenger Deep, at the southern end of the Marianas Trench, reaches a depth of 71,535 shaftments below sea level. There has been only one manned expedition to the bottom of Challenger Deep — a 1960 voyage that took 4 hours and 48 minutes to reach the bottom.
It's about one-two-hundred-fiftieth as tall as Maxwell Montes
In other words, the height of Maxwell Montes is 230 times 308 shaftments.(Ishtar Terra, Venus)
Maxwell Montes rises to a total height of 72,000 shaftments. Since Venus does not seem to have the kind of tectonic activity which gives rise to mountains on Earth, the origin of the Venusian mountain remains the subject of some dispute.
It's about one-six-hundredth as tall as Olympus Mons
In other words, 308 shaftments is 0.0017 times the height of Olympus Mons, and the height of Olympus Mons is 590 times that amount.(a.k.a. Mount Olympus) (Mars)
The tallest mountain in the solar system, Olympus Mons rises to approximately 180,000 shaftments. The mountain has been known to astronomers since the nineteenth century because it is tall enough to rise above Mars' frequent dust storms.
It's about 850 times as tall as a Golf Tee
In other words, the height of a Golf Tee is 0.0011 times 308 shaftments.The most common golf tee size and the length preferred for iron and most wood clubs is 0.350 shaftments tall. The tee did not come into common use until it was promoted by professional golfers Walter Hagen and Joe Kirkwood, as part of a marketing effort by the patent-holder of the well-known, "Reddy Tee."
It's about one-two-thousandth as long as The Panama Canal
In other words, 308 shaftments is 0.00053 times the length of The Panama Canal, and the length of The Panama Canal is 1,900 times that amount.(Canal de Panamá) (Panama)
Connecting the Atlantic and Pacific Oceans across the Isthmus of Panama, the Canal measures 580,000 shaftments in length. Ships passing through the Canal are raised (and then lowered) 170 shaftments above sea level through the lock-and-dam system.
It's about one-two-thousand-five-hundredth as long as The English Channel
In other words, 308 shaftments is 0.000439 times the length of The English Channel, and the length of The English Channel is 2,280 times that amount.(average width between Isle of Ushant and The Walde Lighthouse) (La Manche, Ärmelkanal, Mor Breizh, Mor Bretannek) (a.k.a. The Channel)
The English Channel measures between 702,000 shaftments, narrowing as it flows northeast. The world speed record for a Channel crossing by swimmer was set by Australian Trent Grimsey in 2012, with a time of 6 hours, 55 minutes.