Natural Dam

Natural Dam (HM1K1S)

Location: , CA Mariposa County
Buy California State flags at Flagstore.com!
Country: United States of America
Buy United States of America flags at Flagstore.com!

N 37° 44.81', W 119° 33.056'

  • 0 likes
  • 0 check ins
  • 0 favorites
  • 559 views
Inscription
Perhaps only three or four hundred years ago, an enormous rockfall dumped boulders across this canyon, damming Tenaya Creek. During spring and early summer, the stream backs up into the two pools on either side of the dam.

Tinkering with nature
Nineteenth-century tourists admired the reflection on the surface of the upper pool of Mirror Lake. To enlarge the pool and reflection, early entrepreneurs piled boulders onto the natural dam. Ironically, this helped the pool to fill with sand and silt, leading to regular dredging of the lake. Today, the National Park Service manages Tenaya Creek and Mirror Lake as a natural system.

Sediment continues to build in the upper pool, which is gradually becoming shallower. The force of springtime water scours out most deposits in the undammed lower pool.
Details
HM NumberHM1K1S
Tags
Placed ByYosemite Fund
Marker ConditionNo reports yet
Date Added Sunday, April 19th, 2015 at 6:02pm PDT -07:00
Pictures
Sorry, but we don't have a picture of this historical marker yet. If you have a picture, please share it with us. It's simple to do. 1) Become a member. 2) Adopt this historical marker listing. 3) Upload the picture.
Locationbig map
UTM (WGS84 Datum)11S E 275248 N 4180790
Decimal Degrees37.74683333, -119.55093333
Degrees and Decimal MinutesN 37° 44.81', W 119° 33.056'
Degrees, Minutes and Seconds37° 44' 48.6" N, 119° 33' 3.36" W
Driving DirectionsGoogle Maps
Closest Postal AddressAt or near Snow Creek Trail, CA , US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

Is this marker missing? Are the coordinates wrong? Do you have additional information that you would like to share with us? If so, check in.

Nearby Markersshow on map
Check Ins  check in   |    all

Have you seen this marker? If so, check in and tell us about it.

Comments 0 comments

Maintenance Issues
  1. Is this marker part of a series?
  2. What historical period does the marker represent?
  3. What historical place does the marker represent?
  4. What type of marker is it?
  5. What class is the marker?
  6. What style is the marker?
  7. Does the marker have a number?
  8. What year was the marker erected?
  9. This marker needs at least one picture.
  10. Area Code
  11. Can this marker be seen from the road?
  12. Is the marker in the median?