This cache is a tribute to all the equally bad a$$ female Autobots out there (long past due, since all the previous Autobots in this series were male).
Just like the 2 Autobots mentioned in 'Autobot #22 - GC7XRPY', 4 other Autobots decided to escape all the fighting and death in the Ottawa region, but decided to flee south instead of west. They were making their way along 'Settlers Trail" when they got ambushed. This is the location of 3 of the Autobots. The other Autobot got split up from the group and can be found at: 'Autobot #23 - GC7XT67'
The Autobots hid an energon cube from the Decepticons, which you must find and sign.
To find the location of the lost Energon cube (container), you must navigate to the following coordinates (after solving the riddles):
N 45° 01.(C)(E)(B-2)' W 75° 40.(A-2)(F+G-3)(D)'
Note: The brackets do NOT mean multiplication, each bracket resolves to a single digit.
From the following clip, who's the "best sharpshooter in the galaxy?".
A = The digital root of the name (Hint: 9 letters)
(Note: Sorry about the bad quality... I found this randomly on youtube. If at some point this video were to go away, you could probably still find this answer online).
https://www.youtube.com/watch?v=qeORR5E-ANE
The rest of the questions are not from the clip above.
B = The digital root of the name of the Decepticon that said: "Female Autobots? I thought they were extinct" (Hint: 9 letters, starts with an "S")
C = The digital root of the name of the Autobot that led a group of female Autobot resistance fighters including Chromia, Firestar, and Moonracer? (Hint: 2 words, 5 and 3 letters)
D = The digital root of the name of the Autobot in the image below: (Hint: 5 letters, starts with A)

Now at the site of one of the deceased Autobots (Stage 1 - N 45° 2.011' W 75° 39.976') answer the following:
E = 1 if the wreck bears the symbol of an Autobot, or 0 if not.
F = The number of doors the vehicle has (whether or not they are still attached). Ex: Is it a "4"-door or "2"-door vehicle?
G = 1 if the steering wheel is still attached, or 0 if it is not.
The location of the other 2 Autobots can be found nearby at: N45° 02.005' W075° 39.982'. This corresponds to 'Stage 2', but note that there is nothing required for you to do or observe here other than to try to spot the 2 Autbots. The wilderness, dirt and other misc. Autobot parts make them hard to spot, but they are in there...
Note: There are rumors that the Decepticon who ambushed these Autobots was taken out by a different group of Autobots... this means he is nearby, but his location is currently classified (future episodes may reveal his location).
Be sure to private message me if you know of any other undiscovered Autobot burial grounds (old cars/trucks/motorcycles/skidoos or random scraps of metal) in, or near, Ottawa ;) - and don't forget to 'favorite' these if you are enjoying the series.
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Transformers: Robots Geocaching in Disguise
For a list of every cache in this series, look at the bottom of the 1st cache of this series (here).