Skip to content
The Nexus
DossierENTITY

Derek van Westrum

Coverage of Derek van Westrum in the Nexus archive.

Earliest in view: Jul 14 · 10:00 UTCMost recent: Jul 23 · 02:46 UTC
Co-mentioned in this coverage
mile-high markertopic2Brian Shawperson2NOAA's National Geodetic Surveyorganization1Colorado State Capitolplace1Doug Brodeenperson1Amanda Claphamperson1GPS technologytopic1U.S. National Oceanic and Atmospheric Administrationorganization1National Geodetic Surveyorganization1Colorado Capitolplace1Denverplace1
Recent coverage
  • SCIENCEJul 23 · 02:46 UTCKMGH DENVER7
    History repeats itself: Mile high mark at the Colorado State Capitol to move for a fourth time

    The mile-high marker at the Colorado State Capitol is moving for a fourth time due to improved GPS technology enabling more precise elevation measurements. NOAA's National Geodetic Survey, led by physicist Derek van Westrum, conducted research over 15 years to resurvey the 5,280-foot benchmark. Visitors and tour guides at the Capitol have historically engaged with the iconic marker, which remains a popular landmark despite its relocations.

  • SCIENCEJul 14 · 10:00 UTCDENVERITE
    Fourth time’s the charm for Denver’s mile-high marker

    Denver's mile-high marker has been placed on the 17th step of the State Capitol, joining three previous markers from 1909, 1969, and 2003. Researchers delayed the official installation until next year and emphasized improved measurement technology as the reason for multiple markers. Accurate vertical mile data is critical for systems like floodplain maps and nautical charts.