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This cache has been archived.

Ice and Wind: The cache owner has not responded to issues with this listing, so I must regretfully archive it. If the cache turns up or is replaced in the very near future, email me and I will review it for possible unarchival.

Ice and Wind Volunteer Reviewer


Circular Logic

A cache by Mtn Dog & SugarBot Send Message to Owner Message this owner
Hidden : 02/26/2005
2.5 out of 5
1.5 out of 5

Size: Size:   regular (regular)

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How Geocaching Works

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Geocache Description:

Unlike most multicaches, for this one you'll have to find and record the coordinates for three WPs, one of which is already given at the top of this page. Then think about what plane geometry figure is defined by three points...

All the information you need and the final cache are located in Luther Burbank Park on Mercer Island. The find will require a walk of almost a mile and perhaps a second visit to the park depending on how you solve this. Here are a few suggested methods:
Map the points using GPSr software
Solve for the final coords using Analytic Geometry
Draw the points and shape on a CAD system
Use just your GPSr and measure distances to the WPs
(The 2nd and 3rd method will be more accurate if you convert to a coordinate plane first - see hints)

Good luck and have a great time enjoying the view from WP1 and WP2!

Additional Hints (Decrypt)

[WP1] Haqre J fvqr bs orapu
[WP2] AR Qbpx raq haqre jbbq envy J fvqr
[Solving hint] L-L1 = z(K-K1)
[Solving help] jjj.atf.abnn.tbi/GBBYF/fcp.ugzy
[Giveaway] Guerr JCf qrsvar n pvepyr, svaq gur pragre!

Decryption Key


(letter above equals below, and vice versa)

Reviewer notes

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