Kathryn Koehler is a writer at A-Z-Animals where her focus is on unusual animals, places, and events. Kat has over 20 years of experience as a professional writer and educator. She holds a master's degree from Vanderbilt University. When she is not writing for A-Z-Animals, Kat enjoys puttering in her garden, baking deliciously healthful treats for her family, and playing with her two rescue mutts, Popcorn and Scooter. She resides in Tennessee.
Before the advent of modern technology, professionals determined elevation through manual methods. These included leveling, trigonometric surveying, barometric pressure measurements, topographic maps, altimeters, and visual estimation. These methods relied on… Read More
By Kathryn Koehler 3 months ago