M/M-B1 1/2 1-1/2" Flat Brass Monument Marker (Blank) $28.24 Original Price NT$56.59 Shop for geodetic survey wall art from the world's greatest living artists. VINTAGE GEOLOGICAL SURVEY MARKER BRASS US GEOLOGICAL SURVEY POSITION DISC Pre-Owned $59.95 Buy It Now Free shipping Sponsored VINTAGE GEOLOGICAL SURVEY MARKER BRASS NATIONAL GEODETIC VERTICAL CONTROL MARK Pre-Owned $99.95 Buy It Now Free shipping Sponsored 5/8" YELLOW SURVEYORS CAPS, PROPERTY LINE. (15% off), Sale Price NT$169.55 Yes! Mon to Fri: Geodetic control refers to permanent reference markers placed in the ground and precisely marked, located and documented. Email Subject Line: We Vote For (insert place name). Geodetic Survey The VTrans Survey Unit manages the Vermont Continuously Operating Reference Station (CORS) Network. Is there a way to know if it is a marker? Whitney Gurarding the eastern edge of Sequoia National Park in California, Mount Whitney is the highest peak in the contiguous United States at 14,496 feet. Uses mark property. Note: reference marks have arrows on them pointing in the direction of the preferred mark.) If you have not climbed Mt. More from This Artist Similar Designs. Benchmarks are a type of survey markers whose elevations have been surveyed as accurately as possible based on the technology at the time. More recently, surveyors use markers to set up a GPS receiver antenna in a known position for Differential GPS surveying. (10% off), Sale Price NT$463.14 Some s~, Reliable material: property. Set where you live, what language you speak, and the currency you use. (70% off), Sale Price NT$480.45 The text on the marker reads (by line from top to bottom): FOR INFORMATION OR TO REPORT DAMAGE WRITE /VERTICAL CONTROL MARK/Z 156 RESET/1991/THE DIRECTOR/NATIONAL GEODETIC SURVEY/WASHINGTON, D.C.