Start your adventure at the given coords, which will take you to a metal fence post on the northeast corner of a Roseville Telephone Switching Center. You can park on the other side of Crowder Ln, next to the sheep pasture -- counting sheep is not required.
The final coords are: N38 BI.CFJ W121 GE.HAD. As you count and walk south you will fill in the letters with numbers.
A = # of fence posts minus 26. Count the corner post and the posts heading south till the fence turns west. Include that corner post also.
B = # of orange tower sections. The tower is composed of alternate orange and white sections.
C = # of knobs on the white fire hydrant.
D = Largest of 2 digits from a sidewalk section count. Start counting at the sidewalk section closest to PG&E Smart Meter Box 8252, head south and end with the section closest to the fish. The count will give you a 2 digit #.
E = 1st digit divided by the 2nd digit from the bridge guardrail posts count. The guardrail is on the east side of Crowder Ln. The count will give you a 2 digit #.
F = # of holes on the concrete bridge embankment on the west side of Crowder Ln.
G = Difference between # of block-bricks in the 3rd row and the # in the 1st (top) row. Blocks are just south of the bridge.
H = Difference between the 2 digits from the count of "T"s on the outer circle of the plate on White Mill Crescent Rd. Just west of the corner of Crowder Ln and Mill Crescent Rd, standing on the sidewalk, find the plate with a "D" in the center.
I = # of houses on Oakhurst Ct.
J = # of 7s in the yellow bump count. Find one of the double rectangular yellow plates used to slow wheelchair riders at street corners and count the bumps. You will get a 3 digit #.
The north checksum = 34; the west checksum = 26.