# Ayres Natural Bridge Park > Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Ayres_Natural_Bridge_Park > Markdown URL: https://mediated.wiki/source/Ayres_Natural_Bridge_Park.md > Source: https://en.wikipedia.org/wiki/Ayres_Natural_Bridge_Park > Source revision: 1278874030 > License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) Ayres Natural Bridge over LaPrele Creek **Ayres Natural Bridge Park** is a county park in [Converse County](/source/Converse_County%2C_Wyoming), [Wyoming](/source/Wyoming) in the [United States](/source/United_States). It occupies 150 acres (0.6 km²) between the towns [Glenrock](/source/Glenrock%2C_Wyoming) and [Douglas](/source/Douglas%2C_Wyoming) about 6 kilometers south of [Interstate 25](/source/Interstate_25) exit 151. The park's name is derived from the rock formation of the same name. Ayres is the surname of the family who donated the land which had been part of their ranch. Over the course of millions of years, a bend in LaPrele Creek (originally known as Bridge Creek) wore away at a wall of solid rock, creating a natural opening. The [creek](/source/Stream) eventually shifted course through the opening, forming a 30-foot (10 m) high and 50-foot (15 m) wide [arch](/source/Arch), today known as **Ayres Natural Bridge**, from sandstones of the [Casper Formation](/source/Casper_Formation). Located about a mile (2 km) south of the [Oregon Trail](/source/Oregon_Trail), the Natural Bridge was often visited by emigrants traveling west. It is considered one of Wyoming's first tourist attractions. In 1843, a pioneer described it as "a natural bridge of solid rock, over a rapid torrent, the arch being regular as tho' shaped by art." The park is free to visit. There is a small campground in the park, as well as open picnic areas and covered tables. It is opened from April 15 through October 15, from 8 a.m. to 8 p.m., with registered campers allowed to stay overnight. No pets are allowed in the park. View from the natural bridge to the LaPrele Creek and the old power house At the park entrance, the old power house, a gray concrete building from the early 1900s build by *North Platte Irrigation Company* to supply power to pump water from [North Platte River](/source/North_Platte_River) for irrigation is still preserved. The company went bankrupt before the project was completed. ## External links - ["Converse County Recreation"](https://web.archive.org/web/20070501180401/http://conversecounty.org/community/recreation.activities.htm#4). 2005. Archived from [the original](http://www.conversecounty.org/community/recreation.activities.htm#4) on May 1, 2007. Retrieved May 16, 2006. - ["Ayres Natural Bridge"](https://edits.nationalmap.gov/apps/gaz-domestic/public/search/names/1679050). *[Geographic Names Information System](/source/Geographic_Names_Information_System)*. [United States Geological Survey](/source/United_States_Geological_Survey), [United States Department of the Interior](/source/United_States_Department_of_the_Interior). Wikimedia Commons has media related to [Ayres Natural Bridge Park](https://commons.wikimedia.org/wiki/Category:Ayres_Natural_Bridge_Park). [42°44′03″N 105°36′44″W / 42.734134°N 105.612216°W / 42.734134; -105.612216](https://geohack.toolforge.org/geohack.php?pagename=Ayres_Natural_Bridge_Park¶ms=42.734134_N_105.612216_W_region:US_type:landmark) v t e Protected areas of Wyoming Federal National Fish Hatcheries Jackson Saratoga National Forests Ashley Bighorn Bridger–Teton Caribou–Targhee Medicine Bow–Routt Shoshone National Grasslands Thunder Basin National Historic Sites Fort Laramie National Monuments Devils Tower Fossil Butte National Parks Grand Teton Yellowstone National Parkways John D. 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