Before the Collapse

Before the Collapse (HM16VX)

Location: CRATER LAKE, OR 97604 Klamath County
Buy Oregon State flags at Flagstore.com!
Country: United States of America
Buy United States of America flags at Flagstore.com!

N 42° 54.78', W 122° 8.496'

  • 0 likes
  • 0 check ins
  • 0 favorites
  • 99 views
Inscription

Mount Mazama

— Crater Lake National Park —

When Mt. Mazama collapsed about 6,800 years ago, it left behind evidences of its former self. Like X-ray photos the steep caldera walls reveal the interior of Mt. Mazama before its fall. From this point several pre-collapse volcanic features can be identified.

The massive gray monolith on the rim ahead is Llao Rock. It formed when a large outpouring of lava filled an explosion crater on the north slope of Mt. Mazama. When Mt. Mazama collapsed, part of the hardened lava flow broke off and fell into the caldera, leaving the downslope portion perched on the rim.

The jagged, colorful spires of Hillman Peak in the foreground are the remains of a secondary volcano which erupted on the side of Mt. Mazama. This satellite cone attained a height of 1,000 feet (300m). Erosion here has exposed a maze of clogged and solidified lava conduits that fed the Hillman volcano.
Details
HM NumberHM16VX
Tags
Placed ByNational Park Service
Marker ConditionNo reports yet
Date Added Wednesday, October 8th, 2014 at 9:05am 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)10T E 570065 N 4751511
Decimal Degrees42.91300000, -122.14160000
Degrees and Decimal MinutesN 42° 54.78', W 122° 8.496'
Degrees, Minutes and Seconds42° 54' 46.80" N, 122° 8' 29.76" W
Driving DirectionsGoogle Maps
Area Code(s)541
Closest Postal AddressAt or near 2101 Rim Dr, CRATER LAKE OR 97604, 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.

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. Can this marker be seen from the road?
  11. Is the marker in the median?