• An aerial view of Old Faithful erupting taken from Observation Point with the Old Faithful Inn to the side.

    Yellowstone

    National Park ID,MT,WY

2013-2014 OSV Noise Emissions Test Results

This page displays the results from noise emissions tests conducted on December 11, 2013, December 13, 2013, and January 24, 2014. Files are named according to the "Manufacturer Model (year, nickname)" followed by the "Noise Test Date." For example: "Bombardier B-12 (1953, Chip) – 2014.1.24"

Arctic Cat TZ1 (2014a) - 2013.12.11 (244 KB pdf)

Arctic Cat TZ1 (2014b) - 2013.12.11 (244 KB pdf)

Arctic Cat TZ1 (2014c) - 2013.12.11 (244 KB pdf)

Arctic Cat TZ1 (2014d) - 2013.12.11 (244 KB pdf)

Arctic Cat TZ1 (2014e) - 2013.12.11 (245 KB pdf)

Bombardier B-12 (1953, Chip) - 2014.1.24 (277 KB pdf)

Bombardier B-12 (1953, Sally) - 2014.1.24 (277 KB pdf)

Bombardier B-12 (1956, Griz) - 2013.12.11 (273 KB pdf)

Bombardier B-12 (1965, Rosebud) - 2013.12.13 (277 KB pdf)

Bombardier B-12 (1979, Shoshone) - 2013.12.13 (276 KB pdf)

Chevy Express 3500 (2011, SY7) - 2013.12.11 (244 KB pdf)

Chevy Suburban (2007, SY6) - 2013.12.11 (244 KB pdf)

Ford E-350 Vanterra (2011, SY3) - 2013.12.11 (263 KB pdf)

Ski-Doo Grand Touring LE 900cc (2014, high torque) - 2014.01.24 (244 KB pdf)

Ski-Doo Grand Touring LE 900cc (2014, low torque) - 2014.01.24 (244 KB pdf)

Ski-Doo Renegade Sport 600cc (2014) - 2014.01.24 (263 KB pdf)

Tucker Sno-cat (2014) - 2014.01.24 (244 KB pdf)

Did You Know?

Lake Trout Illustration

Lake trout are an invasive species of fish that is decimating the native cutthroat trout population in Yellowstone Lake.