Near Lander in Fremont County, Wyoming — The American West (Mountains)
The Sinks are eroded into the soft white Madison Limestone formation. No spelunkers have explored very far into the Sinks since the cracks narrow down to very small log and rock chocked passages. (33)
It is unknown exactly how old the Sinks are although they are likely an Ice-Age feature thousands of years old. The glaciers that carved the canyon exposed the soluble limestone and the billions of gallons of water from the melting ice helped create the underground passages. (47)
For many years it was unknown whether the water flowing into the Sinks was the same water flowing out at the Rise. Dye test have proven the connection but have also revealed another mystery: it takes the water flowing in the Sinks over 2 hours to reappear at the Rise. It was also discovered that more water flows out at the Rise than goes in at the Sinks. Why the water takes over two hours to make the journey
Erected by Wyoming State Parks and Cultural Resources.
Topics. This historical marker is listed in this topic list: Natural Features.
Location. 42° 44.868′ N, 108° 48.594′ W. Marker is near Lander, Wyoming, in Fremont County. Marker can be reached from Sinks Canyon Road (State Highway 131), on the left. Touch for map. Marker is at or near this postal address: 3148 Sinks Canyon Road, Lander WY 82520, United States of America. Touch for directions.
Other nearby markers. At least 8 other markers are within 8 miles of this marker, measured as the crow flies. Sinks Canyon - Corridor to the Winds (within shouting distance of this marker); The Rise of the Sinks (approx. 0.4 miles away); Popo Agie Power (approx. 0.4 miles away); Sinks Canyon (approx. 0.9 miles away); Site of Fort Augur (approx. 7.1 miles away); Noble Lane Building (approx. 7.1 miles away); Fremont Hotel (approx. 7.1 miles away); M.N Baldwin Co. (approx. 7.1 miles away). Touch for a list and map of all markers in Lander.
More about this marker. This marker is located in Sinks Canyon State Park, about 7 miles southwest of Lander.
Credits. This page was last revised on July 14, 2016. It was originally submitted on July 14, 2016, by Barry Swackhamer of Brentwood, California. This page has been viewed 365 times since then and 7 times this year. Photos: 1, 2, 3. submitted on July 14, 2016, by Barry Swackhamer of Brentwood, California.
Editor’s want-list for this marker. An overview of the makers located at The Sinks overlook • Can you help?