Geology

Natural Bridges National Monument

/ bigdiff / 6 Comments

The Bridges, so designated because water flowed through them and formed them, are much older (Permian) than Utah’s famous Arches (Jurassic). There are three main bridges to see here, each only a short hike from the scenic drive to view, and they span two canyons, Armstrong and White. The Owachomo Bridge above is over a dry creek bed and can easily be hiked under. The Kachina Bridge is at a more challenging viewing angle near the intersection of the canyons, but if you’re up for the Loop Trail hike, I bet it’s spectacular. Sipapu Bridge, second in size only to Rainbow Bridge, is named for the emergence gateway mythology common to Native American tribes. There’s an impressive view from the overlook, and if you hike and climb about halfway down and go out along a wide ledge, you can get a view from the other side, which is equally magnificent.

This is one of my favorite parks for geologic features. Unfortunately, none of the bridges were working as portals to distant past or other dimensions. The surrounding forest and beautiful canyon lands are part of the Bears Ears National Monument (managed by the US Forest Service and the Bureau of Land Management), and the mesa top buttes that look vaguely like ears from a distance can be seen from the parking lot as well as from miles away in several directions. I drove in from the east, stunned by the scenery, and then left south, where the road drops into Monument Valley. Wow.

“I’m pretty tired…. I think I’ll go home now.”

Forrest Gump

Here’s the link to my visits to all parks in Utah.

Alibates Flint Quarries National Monument

/ bigdiff / 4 Comments

This little lady is an Eastern Collared Lizard, and she’s sitting on Alibates flint, which is an extremely hard and unusual type of flint used by Native Americans for sharp edged tools. These flints were used to hunt Mammoths (possibly to extinction) by the Clovis people over ten thousand years ago. (Clovis is the New Mexican town where they were studied). Successive groups of natives used these flints, notably the Antelope Creek tribe, who dug hundreds of quarry pits around here to dig out the best quality, unweathered flint, and traded them as far as Montana, California, Mexico and Alabama.

I’m not particularly interested in geology, but this was the funniest parks tour I’ve taken. The ranger, Ben, somehow got ten strangers roaring with laughter in ~100 degree heat while climbing a hill to look at rocks and taught us all lots of interesting facts along the way. He even got a Texas Horned Lizard (or “horned frog” or “horny toad”) to scramble in front of us, so we could all get a good look at the official lizard of the state. Actually, the only way into the park is by guided tour, and the only tour during the heat of summer is at 10am. Better to call and make a reservation.

If you are into geology, then this park is fascinating. There’s petrified algae, iron rich red beds, fossilized dolomite, salty gypsum, and of course the multi-colored, sometimes sparkly, agatized dolomite, known as Alibates flint. That name came from a cowboy guide named “Allie Bates”. Mysteriously, perhaps from Valles Caldera or Yellowstone volcanic activity, there was an abundance of silica-rich water that seeped into the dolomite and crystalized into a dense quartz along with an array of other colorful minerals. The flints have many of the rich colors and patterns of the mineralized trees found in the Petrified Forest.

I stayed the night in Palo Duro Canyon (2nd in size to the Grand Canyon) which is another great location for views of the colorful red, white, orange, and yellow rocks under a blue sky with lots of different green trees and plants. The night sky was also brilliant. Any recent rain can close roads though. There was a summer musical playing there for Texans about how wonderful the history of Texas is, but of course, it glosses over the theft of native lands and doesn’t mention slavery at all. It never occurred to me that Texans would be so insecure.

Here’s the link to my visits to all parks in Texas.

Timpanogos Cave National Monument

/ bigdiff / 9 Comments

The cave is famous for its helactites, the squiggly ones that seem to defy gravity. To see them, I’d recommend a reservation or getting here early (open at 7am), as they do sell out. Then, walk up the switchback trail for 1.5 miles, and be careful not to wander off the near vertical drops while you gawk at the stunning views. The gap between the mountains appears to be deeper than it is wide, and there’s a river flowing through a forest at the bottom along with the road. Don’t mind the many hikers. They’re probably just out for exercise, as one lady told me her friend had climbed it over 100 times. And I suspect they exercise regularly with mountain goats here, since I also saw two moms carrying two kids each with more in tow.

The regular tour is ranger led and includes three sections of cave. The middle section has a crack in the ceiling which has dripped water for ages to create the amazing structures: flowstone, soda straws, popcorn, bacon, small crystals, stalactites, stalagmites and columns, in a variety of colors. We also saw a party of explorers with caving equipment entering small passages, which is another tour option for the skinny and flexible. This is my favorite cave.

Here’s the link to my visits to all parks in Utah.