Check out the interpretive signs describing the Harman Valley lava flows from Mt Napier, on the main Hamilton-Port Fairy Road (at S37º 55.112, E141º 56.829) near the Harmans Road junction, before you visit the cache. Tumuli, or blisters, form on the surface of a lava flow when gases build up beneath the surface. The dome roof usually collapses but the sides remain. These are said to be fine examples. The Mt Napier flow joined the Mt Eccles flow further to the south west, and the combined length of the two flows is one of the longest in the southern hemisphere.
This is the fifth in our Vulcan series of caches along the Volcanoes Discovery Trail, which we learned about while doing Derringer’s “What a Blast” cache. Brochures on the Trail can be obtained at the Colac, Hamilton, Port Fairy, Portland, Warrnambool, Tower Hill or Penshurst Visitor Information Centres in Victoria, and Millicent or Mt Gambier in South Australia.
Other maccamob caches on the Trail are:
Ready To Rock
A Leurid View
Puddle Jumper
Rouse About
Peking market Place
Vol-Au-Vent
Big Rock Candy Mountain
Mahout
What A Blast (Derringer), Elemental Forces (Derringer), Centenary (Team Piggy) and Towering Inferno (Alex) are also on the Trail.
As usual, please ensure the cache is well hidden from casual observation again before you leave.
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