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Weeping Rock - Zion NP

Hidden : 11/02/2006
1.5 out of 5
2.5 out of 5

Size: Size: other (other)

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Geocache Description:

This is one of the more popular destinations in Zion. The trail is steep but paved. There are a few steps just before the platform under the alcove. The platform is sometimes closed in the winter due to dangerous icicles that form.

At Weeping Rock, water comes out of the cliff side and drips down to the valley floor. This constant supply of water allows a variety of plants to grow right out of the rock forming one of the many hanging gardens in the valley.

The water dripping down from the rock started as rain and snow in Echo Canyon, located up at the top of cliff. The Navajo Sandstone lines the sides of this canyon. Even though the sandstone looks solid, there are tiny spaces between each sand grains. Some of the rain water and snow melt percolates down into the sandstone through these pores becoming groundwater. The most percolation is concentrated at the bottom of the valley which is almost directly above Weeping Rock.

The water in the sandstone continues to move downward until it encounters the Kayenta Formation. At this location, the Kayenta Formation is a mudstone (the plaque calls it shale) which has much fewer and smaller pores. This slows the water down causing it to pile up like a puddle. The puddle spreads outward in all directions. Where the water meets the side of the canyon wall, it comes out of the sandstone and drips down off the top of the alcove.

There used to be a plaque at the weep showing a diagram of the process. It may be replaced in the future

If you follow the other trail up the canyon wall toward the overlook or hidden canyon, you can get a close look of another weep at N 37 16.265 W 112 56.151.

Logging requirements:
Send me an email (NOT a geocaching message) with :

  1. The text "GCZ5YB Weeping Rock - Zion NP" on the first line
  2. The number of people in your group.
  3. Comparing the surface of the rock above and below the weep.
  4. Include any changes in the rates of erosion between the two and your explanation as to why there is or is not a difference.
  5. Because some are logging the cache from information on the sign, please post a picture of yourself or another in your group at the posted coordinates. (Optional)
    YOU MUST SEND ME YOUR ANSWERS BEFORE YOU LOG IT! If you log the cache before sending your verification email, your log will be deleted. No friendly reminder, no warnings.

The above information was compiled from the following sources:

  • Miek, Robert F., et. al., Geology of Zion National Park, Utah in Geology of Utah’s Parks and Monuments, 2003 Utah Geological Association Publication 28 (second edition) D.A. Sprinkel, T.C. Chidsey, Jr. and P.B. Anderson, editors

Placement approved by the
Zion National Park

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Coordinates are in the WGS84 datum

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