GCTXN4 Up for Tennis?
Type: Mystery | Size: Micro | Difficulty: | Terrain:
By: DES @ | Hide Date: 03/16/2006 | Status: Available
Country: United States | State: Colorado
Coordinates: N40° 00.068 W105° 15.719 | Last updated: 08/30/2019 | Fav points: 5
                 

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An aerial tour of Boulder, Colorado

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The given coordinates used to relate to the cache theme, but are not the coordinates of the cache. (Don't bother going to the given coordinates; it used to be a tennis complex, now it is the CU Law School.)

At each of the 6 coordinates listed below (T1 thru T6), tennis courts have (or had) been built. To locate the cache, you must determine how many courts are at each location. Two other identifications are required (L and R) which will be obvious when you see them.

Probably the best (and most fun) option is Google Earth. If you don’t already have it, it is a free download from www.googleearth.com. NOTE: You will have to use the historical time slider for several of the locations if you don't see a tennis court.

Locate these coordinates and count the number of tennis courts at each site. Solve the equations below to determine the cache coordinates.


T1 is at 40.01006, -105.26825 = (on 10/6/14)
T2 is at 40.04425, -105.28883 =
T3 is at 39.99622, -105.23331 =
T4 is at 39.98701, -105.23820 = (on 10/7/12)
T5 is at 39.97990, -105.23820 =
T6 is at 39.97450, -105.24794 =


These 2 locations are not tennis courts but are needed:

L is at 40.00641, -105.27149 = # of letters painted on the patio (on 6/15/10)
R is at 40.00463, -105.26059 = # of approx. equal roof sections (on 7/30/07)

Check: T1+T2+T3+T4+T5+T6+L+R=23

A = T1 - T2
B = (R + T5)/T5
C = L - T3
D = R + T6
E = T3 X T4
F = R + T2 + 1
G = T4 + T6
H = L + T5

Check: A+B+C+D+E+F+G+H=40


The cache is located at: BE.EFGDA, -105.ABCDB


Cache is a 35mm can; log only, no pen.

I suggest you check your final solution on one of the aerial photo sites before heading out to find it; if you are not along an east-west trail, you made a math error.

WARNING: Google Earth is highly addictive.

Additional Waypoints

09/21/2018 By Oldplasma
Solved it, found it, and signed it. Visiting from AZ. Thanks

08/13/2018 By DES
Final still in place. Wasp free (so far).

05/01/2018 By DES
Changed hint thanks to geopam.

04/19/2018 By geopam
Went out today just to finish this cache. We enjoyed the walk in and all of the farm and prairie life we encountered. The hide was very clever and the cache and the log were in good shape. Thanks DES for the fun puzzle and cache!

03/16/2018 By DES
12th anniversary of cache placement.

03/16/2017 By DES
11th anniversary of cache placement.

10/30/2016 By DES
Added dates for T4 and R.

10/30/2016 By DES
Need to make a few updates.

07/31/2016 By DES
I sent some of Vito Corleone's boys over to visit the wasps (not bees) and they made them an offer they could not refuse.

The container is supposed to be on the bottom.

07/08/2016 By gjhimages
After downloading Google Earth I was able to finally solve this geocache. Had a great hike to the cache and seeing Prairie Dogs watch us! At the cache site I made the find, but found bees coming out of the top and also at the bottom! It appears that the container has slid to the bottom, so I never did sign the log.
Liked the puzzle and the hiding area.
Will send CO photo of the area.

05/23/2016 By jasperdakota
Thanks for the puzzle cache! Nice walk to cache. SL.