Denver / Moran / Estes Park / Canyon / Arvada / Boulder / West Yellowstone / /
Company
High CO / USGS National Water Quality Laboratory / USGS Regional Research Laboratory / /
Country
United States / Canada / /
Event
Environmental Issue / Natural Disaster / /
Facility
Fern Cascade trail / USGS laboratory / Tower Falls / US Highway / Scope Building / USGS National Water Quality Laboratory / /
IndustryTerm
analytical processing / cleaned sampling tools / transportation / chemical deposition / larger sampling network / chemical baselines / chemical record / chemical emissions / mechanized equipment / collection equipment / chemical concentrations / seasonal chemical deposition / utilities service road / in-road site / by-products / chemical reactivity / gas chromatography/mass spectrometry techniques / selected organic and inorganic gasoline-engineemission by-products / chemical composition / motorized travel / chemical solutes / in-road sampling site / chemicals / unpublished chemical analyses / /
NaturalFeature
Yellowstone Plateau / Yellowstone / Rocky Mountains / Teton Pass Togwotee Pass Tower Falls / Rocky Mountain region / Lewis Lake / Sylvan Lake / Jenny Lake / Tower Falls / Chaos Creek / Sylvan Lakes / Rendezvous Mountain Supply Forks Sylvan Lake Sylvan Lake / National Forest / /
Organization
U.S. Environmental Protection Agency / Air Resources Division / NATIONAL PARK SERVICE Denver / Air Quality Division / National Park Service Air Resources Division / Natural Resources Conservation Service / /
Person
Mary Hektner / Sylvan Pass / Kristi Heuer / Kristin Legg / Mile Meadow Garnet Canyon Jackson / John Sacklin / Kathy Tonnessen / George P. Ingersoll / Lewis Lake Divide / Ions Ammonium / George P. Ingersoll Abstract Snowmobile / Mile West Yellowstone West Yellowstone / Mile Meadow Garnet Canyon Togwotee / Turk / Craig McClure / Daisy Pass / /
Western United States / Eastern United States / West Yellowstone / southwestern Montana / northwestern Colorado / northern Colorado / northwestern Wyoming / Central United States / /
Effects of Snowmobile Use on Snowpack Chemistry in Yellowstone National Park, 1998 By George P. Ingersoll U.S. GEOLOGICAL SURVEY