United States Geological Survey | Ordnance Survey | Coast Survey | British Geological Survey | Hayden Panettiere | 1871 | Sloan Digital Sky Survey | Geological Society of America | Geological Survey of Canada | Hayden Planetarium | Geological Society of London | Archaeological Survey of India | Tom Hayden | survey | Nicky Hayden | Dominion Land Survey | California Geological Survey | South Georgia Survey | Hayden Christensen | Ferdinand Vandeveer Hayden | U.S. National Geodetic Survey | Teresa Nielsen Hayden | Statute Law Revision Act 1871 | Hayden | Sterling Hayden | International Union of Geological Sciences | Hayden (musician) | Hayden Black | Great Trigonometric Survey | Geological Survey of India |
On December 18, 1871, at the urging of Ferdinand Vandeveer Hayden and after learning of the findings of the Hayden Geological Survey of 1871, Pomeroy introduced the Act of Dedication bill into the Senate that ultimately led to the creation of Yellowstone National Park.