I will begin looking for a grounding system. A four foot, copper claded stake with a 1/4" solid copper wire should do it.
Yeah, you'll need more than that.
In reality, what you need depends on many factors, and none of us here in internet-land can really tell you what that specifically is without knowing for sure about your specific conditions. I do recall you are up on a hill, so you're probably at a higher risk that most.
Usually knowing soil resistance is required, but that's well outside the hobby realm.
As stated, you'll likely need more than one rod, 8 foot at least, -and- you need to bond all your ground rods together, including the one at your utility (BC Hydro?) connection.
It can get to be a huge undertaking.
It might make more sense to move your antenna. Putting a push up pole or short tower near the existing electric meter might make life a lot easier. That way you have a path straight down from the antenna to a ground rod, and connecting to the utility ground rod is easier.
Industry standard also involves a few other things, if you want to go all the way down this road…
Ground the coax shield at the top of the tower using a manufacturers recommended grounding kit.
Do it again at the bottom of the tower.
Where the coax enters the home, install a Poly-Phaser and ground that to the grounding rods.
Ground your radios to the grounding system also.
It gets expensive, but it would be considered the "right" way to do it at any commercial site. having everything grounded together, including the home electric wiring, you remove any ground potentials between devices.
The resistance in the earth varies, and having separate ground rods not connected can easily cause the potentials to be different, and thus allow energy to flow through the system. Case in point, it's not unheard of for cows near a lightning strike to get killed. Not because they get hit by lightning, but because it's easier for the energy to flow through the cow (in one hoof, out the others) than to go through the earth.
You don't want your antenna/radio on one ground, and your outlets on another.
Of course there are those that will tell you that you don't need to ground things, that it's all "grounded through the power supply". But that's sort of like playing the lottery. Yeah, you -might- win, but you'll more than likely lose.