The Potash Road Pictograph lie right along the Potash Road west of Moab. The road runs in the narrow margin between the Colorado River and the cliffs. There are turnoffs, but be sure to watch for traffic on the road. https://utahpetrographs.blogspot.com This site is just down the road, I believe, from the site I visited in 2014.
Rock art from within and around the state of Utah that I have photgraphed.
Friday, October 9, 2026
Wednesday, December 14, 2016
Bartlett Site
As part of our field trip last weekend we visited a BLM site just off of the DeBinky Wells Road north of Dead Horse Point and Canyonlands near Moab. This is a fairly well-known site, and you can find directions at this url. The site is located in an alcove and contains some pretty impressive Barrier Canyon style pictographs. It's well worth a visit if you are passing by.
Monday, December 12, 2016
DeBinky Wells Road Site
This past weekend Yeongmi and I went on a field trip with URARA down in Moab. We only caught the first day, but what sights we saw! My favorite was the very last site of the day, off DeBinky Wells Road, north of Dead Horse Point and the Island in the Sky section of Canyonlands. Dennis DeVore led us to the site and it was amazing. Since this site is not well known and unvandalized, I am not posting any specific location information and the photos posted have no GPS information attached.
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| Most of the Panel in DStretch using the LDS filter |
Friday, October 7, 2016
Using Structure-from-Motion (SfM) for Rock Art
One of the coolest presentations from last week's URARA symposium in Delta was the one by Robert Mark and Evelyn Billo on using photographs to generate 3D models of rock art sites. The technology is closely related to that used with Microsoft's Photosynth program which I wrote about in my blog a few years ago. However, while Photosynth allows you to zoom around and view a site from the point of view of each camera shot, the tools that Mark and Billo were talking about allow you to actually reconstruct the site as a 3D mesh and overlay the information from the photos as a texture using the same technology. This is really cool.
To test this out, I took a series of photos of the boulder above which we visited on the Monday URARA field trip. I got it from three or four different angles and shot it in close up sections. I then input these images into two programs. 1) Agisoft Photoscan, which is the program that Mark and Billo talked about at the symposium, and 2) Autodesk ReMake, which I found online. Photoscan has a free 30-day trial and seems to generate better results, but it costs $179 for the basic version. ReMake runs the analysis on the cloud and can be much faster, but costs $30 per month once the trial version expires.
Below is a clip of the model that ReMake generated in the form of a quick movie.
The Photoscan-generated model can be viewed at this link.
Here are the same photos at Photosynth.
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| Pictograph Panel on Black Rock Mesa |
Below is a clip of the model that ReMake generated in the form of a quick movie.
The Photoscan-generated model can be viewed at this link.
Here are the same photos at Photosynth.
Monday, October 3, 2016
URARA 2016 Symposium
I just go back from my first attendance at the Utah Rock Art Research Association (URARA) annual symposium. This year it was held in Delta, Utah. It was one of the funnest experiences I've had in a long time.
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| Sheep from Miller Canyon |
Sunday, September 18, 2016
Nine Mile Canyon
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| The Pregnant Buffalo |
Monday, September 12, 2016
Parowan Gap
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| "The Zipper" at Parowan Gap |
Dinosaur National Mounument Rock Art
Fremont Indian State Park
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| Sheep Petroglyphs at Fremont Indian State Park in Utah |
Monday, August 24, 2015
'Winged Monster' Rock Art Finally Deciphered
I woke up to this news at Real Clear Science today. This is pretty cool.
'Winged Monster' Rock Art Finally Deciphered
Black Dragon Canyon is one of my favorite rock art sites. It's named after a winged figure that early rock art aficionados thought they saw and then outlined with chalk.
"I myself visited the site in person a few years ago," said Phil Senter, an associate professor of biology at Fayetteville State University in North Carolina, who was not associated with the study. "There's no pterodactyl there at all. It's a collection of other images."
This has been known for quite a while, but the images they were able to tease out of DStretch (see earlier post here) are stunning.
'Winged Monster' Rock Art Finally Deciphered
Black Dragon Canyon is one of my favorite rock art sites. It's named after a winged figure that early rock art aficionados thought they saw and then outlined with chalk.
"I myself visited the site in person a few years ago," said Phil Senter, an associate professor of biology at Fayetteville State University in North Carolina, who was not associated with the study. "There's no pterodactyl there at all. It's a collection of other images."
This has been known for quite a while, but the images they were able to tease out of DStretch (see earlier post here) are stunning.
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| from the article |
Sunday, April 5, 2015
Familiar Motifs
Tuesday, August 19, 2014
Colorado River Near Moab
Rock Art Tour of the Swell
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| DStretch enhanced photo from Buckhorn Draw August 2014 |
I took a quick rock art tour of the San Rafael Swell last Saturday with a couple of friends. We didn't hit any new sites, but revisited Rochester Creek, Moore Cutoff, Short Canyon, Black Dragon Canyon and Buckhorn Draw.
Saturday, May 17, 2014
Provo Canyon Petroglyphs Revisited
This week on Tuesday I hiked back up to the boulder field near Johnson's Hollow in Provo Canyon and revisited some of the petroglyphs there. I first visited this site in January 2011 and reported on it last August. I was accompanied by my son, Alan, and my dog, Stretch, the dauchshund. We saw several petroglyphs I have have seen there before. And we found a new boulder I had not seen before.
This new boulder is further east and uphill of where I have looked before. I suspect there are a great many more in this area one could find with a little time and patience.
| The "new" boulder |
Monday, April 21, 2014
Cave Spring Pictographs
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| Hnadprints from the Handprint Panel |
Sunday, April 20, 2014
Newspaper Rock Petroglyphs
Newspaper Rock is a Utah State Monument located on State Route 211 in San Juan County, Utah. It is in the upper part of Indian Creek Canyon and very close to the road. The site is similar to that at Rochester Creek in Emery County in that it contains a wide variety of rock art styles that span a vast amount of time.
Saturday, April 19, 2014
Moab Golf Course Petroglyphs
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| DStretch YBK Filter |
Lone Warrior Pictograph
Thursday, April 17, 2014
Courthouse Wash Rock Art
The pictographs at Courthouse Wash are primarily Barrier Canyon Style. There are also some smaller Fremont and Ancestral Puebloan petroglyphs here.
Wednesday, April 16, 2014
Sego Canyon Rock Art
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| Barrier Canyon Pictographs from Site 2 |
The rock art panels in Sego Canyon (aka Thompson Canyon) are some of the best Barrier Canyon Style art in Utah. The ratio of impressiveness to difficulty of access is quite high. There are also some very high quality Fremont figures here too
These rock art panels are easily accessible by car along a paved road. Exit I-70 at the town of Thompson, exit 187, and drive north through the town and up the canyon for about 4.4 miles. There is a parking lot on the left-hand side of the road.
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