As this is an EarthCache there are special logging requirements and NO container to find. Logs not meeting the posted requirements below may be deleted.
Driftless: Natural Bridge State Park
Natural Bridge State Park is located just a short drive from Baraboo. While a state park sticker is required to enter the park, if you plan your trip in advance and get an early start you can also visit nearby Devil's Lake and Parfrey's Glen all on the same one day pass. Natural Bridge State Park has been a tourist attraction since 1870 and is currently managed by the DNR. It was designated a State Natural Area in 1973.
A trail map of the park can be found HERE. There are three routes to the Arch. Walking from the Northwest corner of the parking lot you will come to an intersection (the trail is a loop passing the arch). Taking the left is the shortest route to the Arch at 0.20 miles. Taking the right is a bit longer (0.45 miles) and features a scenic overlook. You could also take the trailhead at the Southwest end of the parking lot which will pass by a log cabin and smokehouse (0.35 miles).
As this park is a State Natural Area please STAY ON TRAIL.
The listed Coordinates are for the Arch and Shelter.
The park is on the edge of the Baraboo Range in an unglaciated, driftless area of south-central Wisconsin.
The Driftless Area of Wisconsin is well known for its peculiar terrain as it escaped glaciation in the most recent ice age and is surrounded by glaciated territory. The area shows what the rest of Wisconsin, as well as the northern and eastern United States, were like before the Glacial Period.
The term "driftless" indicates a lack of "glacial drift," which is the material left behind by retreating continental glaciers. The Driftless Area covers an area of nearly 15,000 square miles, 13,360 square miles of which lie in Wisconsin. This region includes elevations ranging from 603 to 1,450 feet.
Glaciers most recently flowed into Wisconsin about 25,000 years ago and covered approximately two-thirds of the State for about 14,000 to 16,000 years before melting back. The retreat of the ice was stalled several times by readvances; the last one touched northwestern Wisconsin about 10,000 years ago. Floods of meltwater released from the retreating glaciers and the draining from glacial lakes cut spectacular gorges in several areas of the State.
Natural Bridge State Park contains the largest natural bridge known in Wisconsin. The arch which is made up of Cambrian-age sandstone deposited by a shallow inland sea 530 million years ago, was created by wind erosion and weathering of the sandstone. Directly beneath the arch is a rock shelter once used by Paleo-Indians between 10 and 12 thousand years ago making the site, "one of the oldest dated sites for human occupancy in northeastern North America," according to a sign in the park.
(DO NOT LEAVE THE TRAIL)
1. Estimate the height of the arch
2. Estimate the length of the underside of the arch.
Uploaded pictures are greatly appreciated and a way to thank the cache developer as well as encourage others to visit.
The Geocache Notification Form has been submitted to Thomas A. Meyer Conservation Biologist, State Natural Areas Program. Geocaches placed on Wisconsin Department of Natural Resource managed lands require permission by means of a notification form. Please print out a paper copy of the notification form, fill in all required information, then submit it to the land manager. The DNR Notification form and land manager information can be obtained at: http://www.wi-geocaching.com/modules.php?name=Wiki&pagename=Hiding%20A%20Cache