Entry Form

Contest Timeline

Contestants each receive 3 lbs of petrified wood rough tumbling rock starting November 1, 2025

Final deadline to enter: January 1, 2026

Entry Fee

$25

plus $11 postage if entering via US mail Checks should be made payable to LHGMS

Enter contest and return tumbled rock entries in person or via US mail no later than March 1, 2026 to:

Tumbling Contest c/o Havasu Rocks

790 N Lake Havasu Ave Lake Havasu City, AZ 86403

Contest Rules

  1. Contestants are permitted to remove chips, cracks and other imperfections on a grinding wheel. After this initial cleanup, the rock must be allowed to go through and complete the tumbling process without any further handwork.
  2. No hand polishing or grinding is permitted after the tumbling process begins.
  3. The following is permitted and is determined by the contestant: resizing of the initial rough rock, total number of tumbling stages, the grit types and sizes, the selection of polish materials, use of media, the amount of tumbling time, and whether to use a rotary and/or vibratory tumbler.
  4. Any substitution of the provided rough rock is NOT PERMITTED.
  5. All rock will be judged blind against the other contestants.
  6. Judges look for the following: polish left in cracks, flaws in the workmanship (not the rock), coatings or anything that brings out the polish other than the work and wheel marks on the stone. Wheel marks will disqualify the applicant.

Questions?