5 papers
Contemporary Shrinking of Colombia's Highest Mountains: Pico Simon Bolivar and Pico Cristobal Colon
Eric Gilbertson, Kathryn E. Stanchak, Scott Hotaling
Pico Cristobal Colon and Pico Simon Bolivar are the highest peaks in Colombia and were last accurately surveyed in 1939. This historical survey measured Cristobal Colon, Colombia's…
Mount Rainier and Liberty Cap Elevation Survey 2025
Eric Gilbertson, Larry Signani, Branden Joy +5
In 2024, we discovered that Columbia Crest, the historical summit of Mount Rainier, was no longer the highest point on the mountain. Instead, a point 133 m (436 ft) to the south al…
Mount Rainier Elevation Survey 2024
Eric Gilbertson, Larry Signani, Kathryn Stanchak
The elevation of Mount Rainier was last surveyed in 2010 by the Land Surveyors Association of Washington. More recent LiDAR data and observational reports have indicated that the h…
Determination of new national highpoints of five African and Asian countries, Saudi Arabia, Uzbekistan, Gambia, Guinea-Bissau, and Togo
Eric Gilbertson, Matthew Gilbertson
Not all nations on earth have previously been surveyed accurately enough to know for certain which peak is the national highpoint, the highest peak in the country. Knowledge of the…
LiDAR Accuracy on North American Mountain Summits
Eric Gilbertson, Richard Hensley, Andrew Kirmse +2
Mountainous terrain is increasingly being measured and mapped by airplane-based LiDAR (Light Detection and Ranging) techniques, but the accuracy of these measurements in such topog…