Image 13613, Orange Spring Mound.  Many years of mineral deposition has built up Orange Spring Mound, part of the Mammoth Hot Springs complex. Yellowstone National Park, Wyoming, USA, Phillip Colla, all rights reserved worldwide.   Keywords: environment:geothermal:geothermal features:landscape:mammoth hot springs:national parks:nature:orange spring mound:outdoors:outside:scene:scenery:scenic:spring:usa:world heritage sites:wyoming:yellowstone:yellowstone national park:yellowstone park.