Hi Jim, that is the CST/Berger Universal Elevator Column 60-ELC20. I am using it to easily adjust my total station to the required height when I measure the elevations of the fissure. If I keep my total station at a constant height I can easily measure the differences in elevation of my prism. Before I had to adjust the tripod to get my height. It was a hassle and a pain in the butt. Now I just unlock it and crank on the lever and up/down the total station height goes. The range is four inches of travel. The optical plummet works through the elevator column. The work is much easier and efficient.
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Survey Photos by Tag or CategoryEarth's Largest Survey Photos Collection
Since 2007, Land Surveyors around the world have shared their best Surveying Photos from the field. Inside this collection you can transport yourself to virtually any location on Earth and see how Land Surveyors work, types of equipment being used and environmental challenges associates with being a land surveyor in that location.
Location Based Chapter Hubs also have photos specific to the locations they represent. You can use our Surveyor Apps for quick sharing of your photos from the field.
Note: Members who have uploaded their photos of surveying to this collection can also move their photos to location based hubs. To see how, follow this tutorial.
Thoughts