Grand Gulf State Park (Missouri)

From Wikipedia, the free encyclopedia
Jump to: navigation, search
This article is about Grand Gulf State Park (Missouri). For other uses, see Grand Gulf.
Grand Gulf State Park
Missouri State Park
Grand Gulf cave 1-02Aug07.jpg
Water entering this cave reappears nine miles (14 km) away at Mammoth Spring.
Country United States
State Missouri
County Oregon
Elevation 712 ft (217 m) [1]
Coordinates 36°32′43″N 91°38′43″W / 36.54528°N 91.64528°W / 36.54528; -91.64528Coordinates: 36°32′43″N 91°38′43″W / 36.54528°N 91.64528°W / 36.54528; -91.64528 [1]
Area 321.96 acres (130 ha) [2]
Established 1984
Management Missouri Department of Natural Resources
Location in Missouri
Website: Grand Gulf State Park
Designated June 1971

Grand Gulf State Park near Thayer, Missouri, consists of 322 acres (130 ha) encompassing a forked canyon that is the remnant of an ancient collapsed dolomite cave system.[3][4] An uncollapsed part of the original cavern roof spans 200 feet (61 m), creating the largest natural bridge in Missouri. It was declared a National Natural Landmark in June 1971 for its excellent example of karst topography and underground stream piracy.[4]

Description[edit]

The Grand Gulf is nearly 1 mile (1.6 km) long and up to 130 feet (40 m) deep with sheer sides.[3]

A watershed of 26 square miles (67 km²) feeds into the gulf which itself drains into a cave entrance at its eastern end. Dye traces have shown that water entering the cave in Grand Gulf emerges 1 to 4 days later at Mammoth Spring in Arkansas, 9 miles (14 km) distant.

The land that is now the park was acquired by conservationist Leo Drey before becoming part of the Missouri state parks system.

Facilities[edit]

The park has picnic tables and toilet facilities and is operated by the state as a day use area with no camping. Because of heavy foliage the Grand Gulf is best viewed in winter months.

References[edit]

  1. ^ a b "Grand Gulf State Park". Geographic Names Information System. United States Geological Survey. 
  2. ^ "State parks...estimated acres" (PDF). Revised Statewide Comprehensive Outdoor Recreation Plan: 2008-2012. Missouri Department of Natural Resources. pp. 142–143. Retrieved September 9, 2014. 
  3. ^ a b "Grand Gulf State Park". Missouri State Parks. Missouri Department of Natural Resources. Retrieved September 29, 2014. 
  4. ^ a b "Grand Gulf". National Natural Landmarks Program. National Park Service. June 28, 2012. Retrieved September 29, 2014. 

Beveridge, Thomas R. (1980), Geologic Wonders and Curiosities of Missouri, Rolla, Mo.: Missouri Division of Geology and Land Survey, pp. 335–344, Library of Congress Card Catalog No. 78-69968 

External links[edit]