This is a simple multi-cache, but it's a long one. You'll see a few places that a Sunday drive might take you.
WP1: At the posted, you will find a tag on a tall pole. The tag came with the pole. The text on it is as follows: xxABCx
Project a waypoint at a distance of (ABCx13.7) metres, on a bearing of (ABC-105) degrees.
WP2: There is a hydro pole with two 4-digit numbers on it. Use the one with the lower value and call it z.
Make a projection of ((z*2)-24) metres, on a bearing of (ACB-33.74) degrees.
WP3: On this hydro pole you'll find a 4-digit number. Call it DEFE.
Your next waypoint is N44 (D+A)D.(D+F)CB' W 76° E.(D+F)ED'
WP4: You're at a hydro pole that has a 5-digit number. Divide that number by 1000 and add it to the following N and W dummy coordinates:
N44 31.080 W75 46.949
WP5: At this location is a lamp post with a tag placed high up. The tag has a Street Light Number. Call the number W.
Make a projection of a distance of (W*12.9) metres on a bearing of (W*4.419) degrees.
WP6: This pole has two numbers. The upper one has a single digit, and you can ignore this one. The lower number has 3 digits. Call the digits GHJ.
The next waypoint is at N 44° (B-F-D)(B+F).GB(C+J)' W 76° (D+F).HJ(C+F)'
WP7: Look for a 5-digit number. Call it KLMNP.
Your next waypoint is at N 44° (W+19).(L-K)N(K+L) W 76° (K+L).KA(P-K-L)'
WP8: Look for a 4-digit number. Divide it by 1000 and subtract it from the following dummy coordinates:
N44 56.580' W 76° 6.533'
WP9: Look for yet another 5-digit number. Call it QRSTV.
Your next waypoint is at N 44° 5(V-Q).T(S-R)(S-T)' W 76° ((2*R)-Q).LE(V+T)'
WP10: Here you're looking for a 3-digit number. Call it Y.
Make a projection of (Y*2.27) metres and a bearing of (Y*0.145) degrees and head to the final cache location!
Congratulations to dadndaughter, MAPSIT and The Burrow on a well-earned FTF. Apologies for unwittingly making you my test subjects on this one and thanks for helping me fix the bugs that came up.