Aluminum R/W Monument Cap |
A Surveyor's Point, Set by State Agency. Point in center is used by Surveyors |
Another Aluminum Cap, fitted over Square post, driven into ground. This has not yet been "punched" with a mark |
GPS Aluminum Cap, with identification stamped in top. Surveyors will use monuments like this to obtain GPS coordinates. |
Public Land Survey (PLS) Reference Monument - Cast Iron Monument (Also see Prototype Mold below) |
PLS Reference Monument 4 inches in diameter, 18 inches into the ground (also see Prototype mold below) |
WPA Cement Monument - Perpetuated Original PLS Monument |
Cement Monument set as a PLS monument during WPA |
GPS Station Aluminum DIsk
No longer usable. (Damaged by construction) |
GPS Station
Aluminum Disk with magnet atop of driven rod |
Half Inch Pipe with Surveyor's License No. etched in cap
(a common property corner in many areas) |
Vertical Control Benchmark at Hoover Dam |
"Initial Point"
from a Survey in Indiana
(Public Land Survey) |
Each about 14
inches long, one is an old "pinched top" 1/2 inch pipe marker, the other a new style "capped iron pipe" |
Cap saved from a destroyed "Judicial Landmark. Just one variety of a "JLM" - cemented into a monument placed by a Surveyor- ordered by court |
Just a sampling of the many types of identifications found on monuments for property corners, control points and R/W markers |
Prototype mold designed, and created in early 1950's to create "Cast Iron Monuments" |
Prototype mold designed, and created in early 1950's to create "Cast Iron Monuments" |
Park Control Monument as set by WPA (Cast Iron, 4 inches square) |
Park Control Monument as set by WPA (Cast Iron, 4 inches square) |
Park Control Monument as set by WPA (Cast Iron, 4 inches square) |
Half Inch "Pinched Top" iron, circa 1900 |
Half Inch "Pinched Top" iron, circa 1900 |
Railroad R/W Monument
3" x 3"x 42" tall |
Railroad R/W Monument
3" x 3"x 42" tall |
Railroad R/W Monument
3" x 3"x 42" tall |
Flanged Railroad R/W Monument
4"dia. x 36 " tall |
Flanged Railroad R/W Monument
4"dia. x 36 " tall |
Flanged Railroad R/W Monument
4"dia. x 36 " tall |
Cast Iron Cap
(driven into 1-1/4"x 18" Iron Pipe)
Used for R/W monuments |
Sandstone Monument
3"x 4"x 18" perpetuating PLS Corners in an area of MN (circa 1889) |
Sandstone Monument
3"x 4"x 18" perpetuating PLS Corners in an area of MN (circa 1889) |
Sandstone Monument
3"x 4"x 18" perpetuating PLS Corners in an area of MN (circa 1889) |
Vertical Control "Benchmark"
In Yellowstone National Park |
USGS - Vertical Control "Benchmark"
In Yellowstone National Park
(Kepler Cascades) |
USGS - Vertical Control "Benchmark"
In Yellowstone National Park
(
Kepler Cascades) |
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At right: October 2004 photo of Mile post 61 along the Colorado-Wyoming boundary near Cheyenne. |
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| Monument along boundary line between South Dakota & Nebraska (front face) |
Monument along boundary line between South Dakota & Nebraska (rearview) |
Monument along So. Dakota & Nebraska boundary (rearview-closeup) |
The mile post pictured above was set in the 1870's. Original wood post still showing some of the original scribing was found lying on its side next to a small mound of stones. Post was upgraded with a 3/4" rebar and 3¼" aluminum cap and was re-set inside a mound of stones. Photo & Description:
American West Land Surveying Co., Brighton Colorado |
| Stone Monument in Gaithersburg, Maryland |
Monument on Guadalupe Mountain, Texas.
Photo by: Craig Alderman, RPLS. (Texas) |
Nome Alaska Stone Monument. Photo by: R. Scott McClintock, RPLS (Alaska & Texas) |
GLO Stone Monument found in Clay Co. Texas. An original corner, first recovered in 1939, then recently in July 2007.
Photo by: David Disheroon, Topographic Land Surveyors |
Photos at right:
Original Corner to Kansas and Nebraska.
It is a plus + cut in solid granite near Mt. Neva, west of Boulder Colorado at 12,400 ft.
Photos & Information by Steven S. Brosemer, LS (Kansas) |
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More about the Original Corner to Kansas & Nebraska (above):
On July 29, 2006, a search party from 3 States climbed to the "summit" of Rockies and recovered teh original corner as contracted and surveyed in 1859 by Withrow and Todd, as defined by the Kansas Nebraska Acto of 1854. i.e., the 40th Parallel and the "summit of the Rockies".For more information, see the December issue of the American Surveyor Magazine. More photos and information can be found at this site. |
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