Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

A Monumental Task [Mount Rushmore]
Advanced Imaging Magazine ^ | September 2010 | Lee J. Nelson

Posted on 11/02/2014 8:06:38 PM PST by SunkenCiv

An imaging project is designed to help save the iconic Mount Rushmore from the effects of weather, physical erosion and more...

I always have been fascinated by the Mount Rushmore National Memorial (Keystone, S.D.); ever since noted New York Times Magazine photographer Sam Falk gave me an image he took of Gutzon Borglum’s sculpture. When Falk presented me with his photograph in the 1960s, little did anyone realize that the effects of erosion—although not yet readily apparent—already had taken hold.

Carving of the monument actually began in 1927 and finally was completed in 1941. Although jurisdiction over Mount Rushmore was ceded to the Department of the Interior’s National Park Service in 1933, nearly 50 years passed before general acknowledgment of the necessity for preservative action.

Weathering breaks down rock. While granite is fairly resistant, outcroppings constantly are subjected to the elements; causing gradual chemical and physical changes. Carbon dioxide and oxygen from runoff attrite substance. Physical erosion occurs when water, lodged in cracks, turns to ice and expands. Annual freeze/thaw cycles additionally force apart fractured edges. Tree roots produce a similar result which, ultimately, causes rock to disintegrate into clay and sand.

To safeguard the statues, experts would need to predict which of the granite blocks were most prone to shifting. In 1989, Respec Engineering, Inc. (Rapid City, S.D.) conducted a high-tech checkup that included photogrammetry and three-dimensional AutoCAD (AutoDesk, Inc., San Rafael, Calif.) modeling. Using precision cameras mounted aboard fixed- and rotary-wing aircraft, the survey comprised some 300 photographs. From those images, a computer created 3D projections of the monument’s internal fracture system. It was part of a sprucing up for the Memorial’s impending 50th anniversary.

(Excerpt) Read more at advancedimagingpro.com ...


TOPICS: History; Science; Travel
KEYWORDS: godsgravesglyphs; mountrushmore
Navigation: use the links below to view more comments.
first 1-2021-30 next last
MORU Hall of records, according to NPS, “Artist Gutzon Borglum envisioned a Hall of Records behind the sculpture that was never completed. The Hall of Records and the mountain are inaccessible to the public.” Photo #19 by NPS / Amy Bracewell

MORU Hall of records, according to NPS, “Artist Gutzon Borglum envisioned a Hall of Records behind the sculpture that was never completed. The Hall of Records and the mountain are inaccessible to the public.” Photo #19 by NPS / Amy Bracewell

1 posted on 11/02/2014 8:06:38 PM PST by SunkenCiv
[ Post Reply | Private Reply | View Replies]

To: StayAt HomeMother; Ernest_at_the_Beach; decimon; 1010RD; 21twelve; 24Karet; 2ndDivisionVet; ...

2 posted on 11/02/2014 8:07:20 PM PST by SunkenCiv (https://secure.freerepublic.com/donate/)
[ Post Reply | Private Reply | View Replies]

Mount Rushmore, hanging in the sky, working on an eye. Not a single man or woman died during the 14 years of blasting and carving to create the Mount Rushmore National Memorial. Photo #29 by Charles D’Emery / NPS

Mount Rushmore, hanging in the sky, working on an eye. Not a single man or woman died during the 14 years of blasting and carving to create the Mount Rushmore National Memorial. Photo #29 by Charles D’Emery / NPS

3 posted on 11/02/2014 8:10:29 PM PST by SunkenCiv (https://secure.freerepublic.com/donate/)
[ Post Reply | Private Reply | View Replies]

To: SunkenCiv

Maybe they should close all the roads around it and arrest people if they stop to take pictures.


4 posted on 11/02/2014 8:10:39 PM PST by PistolPaknMama
[ Post Reply | Private Reply | To 2 | View Replies]

To: SunkenCiv

I like the parodies showing the Presidents from the Canadian side of the mountain ....


5 posted on 11/02/2014 8:11:37 PM PST by Robert A Cook PE (I can only donate monthly, but socialists' ABBCNNBCBS continue to lie every day!)
[ Post Reply | Private Reply | To 2 | View Replies]

Oddly enough, this turned up as I searched to find the article posted in #1, and I'd seen that one first, sometime last week.
Company Celebrates National Jerky Day with Meaty Mount Rushmore

Company Celebrates National Jerky Day with Meaty Mount Rushmore

6 posted on 11/02/2014 8:12:29 PM PST by SunkenCiv (https://secure.freerepublic.com/donate/)
[ Post Reply | Private Reply | View Replies]

To: SunkenCiv

That picture is freaking me out.

How do you remove yourself from that situation?


7 posted on 11/02/2014 8:17:27 PM PST by eyedigress (e(!zOld storm chaser from the west)/?s)
[ Post Reply | Private Reply | To 3 | View Replies]

To: SunkenCiv
They are actually trying to decide the best place to add Obamas image to the mountain.
8 posted on 11/02/2014 8:19:51 PM PST by Craftmore
[ Post Reply | Private Reply | To 6 | View Replies]

To: SunkenCiv
Not a single man or woman died during the 14 years...

One of the History Channel's documentaries on the carving has a snippet of the last guy on the mountain finishing up work for the day, hanging down the side in a bosun's chair.

The dynamite had been placed, ready to be set off at the end of the work day (to allow the dust and debris to settle over night), however, a storm moved in and lightning set the blast off.

The guy had his boots blown off, but was back at work the next day.

The dynamite guys would get headaches from touching the nitroglycerin when cutting the sticks down to the needed charge size.

9 posted on 11/02/2014 8:25:25 PM PST by Calvin Locke
[ Post Reply | Private Reply | To 3 | View Replies]

To: eyedigress

Eye don’t nose.


10 posted on 11/02/2014 8:40:54 PM PST by SunkenCiv (https://secure.freerepublic.com/donate/)
[ Post Reply | Private Reply | To 7 | View Replies]

To: eyedigress

Just a guess that the photo is composed that way for a major newspaper sensation. Perhaps a platform or scaffolding is right below.


11 posted on 11/02/2014 8:43:25 PM PST by JennysCool (My hypocrisy goes only so far)
[ Post Reply | Private Reply | To 7 | View Replies]

To: SunkenCiv
It can be one dicey National Monument, that's for sure ...


12 posted on 11/02/2014 8:50:47 PM PST by JennysCool (My hypocrisy goes only so far)
[ Post Reply | Private Reply | To 3 | View Replies]

To: JennysCool

I would hope so. I have been in precarious spots but that is very dangerous. Good Grief


13 posted on 11/02/2014 9:13:12 PM PST by eyedigress (e(!zOld storm chaser from the west)/?s)
[ Post Reply | Private Reply | To 11 | View Replies]

To: SunkenCiv

I grew up in SoDak and have visited Mt. Rushmore many times. Always amazed every time I was there.


14 posted on 11/02/2014 9:33:49 PM PST by Veggie Todd (The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants. TJ)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Craftmore
They are actually trying to decide the best place to add Obamas image to the mountain.

Here is the appropriate statue of Hussein. It is made of sand, rather than granite.
And, it is already shovel-ready.

15 posted on 11/02/2014 9:43:04 PM PST by Slyfox (To put on the mind of George Washington read ALL of Deuteronomy 28, then read his Farewell Address)
[ Post Reply | Private Reply | To 8 | View Replies]

To: SunkenCiv

I watched the Cold War flic, North by Northwest, on TV this past Saturday. It is just as spooky now as it was in 1959 when I first saw it. Eva Marie Saint crawling across the face of the monument in high heels with Cary Grant in a suit and dress shoes is a sight that remeains gripping to this day, although implausible.


16 posted on 11/02/2014 11:40:32 PM PST by afraidfortherepublic
[ Post Reply | Private Reply | To 1 | View Replies]

To: Craftmore

Simple. Add it about halfway down on the backside.


17 posted on 11/02/2014 11:43:06 PM PST by Hillarys Gate Cult (Liberals make unrealistic demands on reality and reality doesn't oblige them.)
[ Post Reply | Private Reply | To 8 | View Replies]

To: Craftmore

Engineers are diligently working on how to carve the “jug ears” and keep them from snapping off in the wind.


18 posted on 11/03/2014 3:06:48 AM PST by Skybird
[ Post Reply | Private Reply | To 8 | View Replies]

To: Skybird; Craftmore

Actually, the problem is how to make the final product not look like Batboy.


19 posted on 11/03/2014 5:31:41 AM PST by wildbill (If you check behind the shower curtain for a murderer, and find one... what's your plan?)
[ Post Reply | Private Reply | To 18 | View Replies]

To: Craftmore
They are actually trying to decide the best place to add Obama's face to the mountain.

Just one or both of them? I had to edit the set-up a little, so sue me...

20 posted on 11/03/2014 5:54:10 AM PST by null and void (If a quarantine saves just one child's life, it's worth it.)
[ Post Reply | Private Reply | To 8 | View Replies]


Navigation: use the links below to view more comments.
first 1-2021-30 next last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson