Aug 18, 2026 · 1 hr · 15 segments
Tune in live at kvmr.org on the 1st, 2nd, & 3rd Monday Of The Month from 6pm-7pm for KVMR's Garden Forum & Call in with your gardening questions at [**530-265-9555**](tel:530-265-9555) **Kathi…
Evelyn SolteroGuest
Tom WadeHostYes.

And it's probably in some type of a – so there can be underground venues for water moving across your land.

And can you – sort of identify those places where water is moving underground on your place by the vegetation that ends up that you see on the surface?

I think the native vegetation can give you an idea of how surface water is infiltrating into your land.

And if you could imagine it's raining or snowing and that precipitation hitting that rock and sliding down the edges of it, when it hits the soil, it begins to slide down the rest of that rock underneath the soil.

So is that like how rock mulches work, where the impact of the water is coming down and it's hitting a group of rocks, but the rocks are stopping it from being erosive? Because you see on the side of the highway where they take all those giant rocks and they've cut the road and it's probably about a 45-degree angle.

And are they doing that so that they don't get erosion? And how does the rock help with that?

In that situation, I don't know that those rocks that have been placed by human beings are really assisting infiltration.

And so I wouldn't say that those rocks are contributing to groundwater infiltration.

Okay, so these are rocks where you're seeing, you know, the black lichen and everybody growing on top of them and they're just a rock outcropping.
Yes.

And it's probably in some type of a – so there can be underground venues for water moving across your land.

And can you – sort of identify those places where water is moving underground on your place by the vegetation that ends up that you see on the surface?

I think the native vegetation can give you an idea of how surface water is infiltrating into your land.

And if you could imagine it's raining or snowing and that precipitation hitting that rock and sliding down the edges of it, when it hits the soil, it begins to slide down the rest of that rock underneath the soil.

So is that like how rock mulches work, where the impact of the water is coming down and it's hitting a group of rocks, but the rocks are stopping it from being erosive? Because you see on the side of the highway where they take all those giant rocks and they've cut the road and it's probably about a 45-degree angle.

And are they doing that so that they don't get erosion? And how does the rock help with that?

In that situation, I don't know that those rocks that have been placed by human beings are really assisting infiltration.

And so I wouldn't say that those rocks are contributing to groundwater infiltration.

Okay, so these are rocks where you're seeing, you know, the black lichen and everybody growing on top of them and they're just a rock outcropping.
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