I built a few yard items from kits.
I bought these Heki trees, added some ground foam to them, and planted them at the top of Closet Mountain.
On the other side of the layout, where the main line's turn-back loop is, I had installed some turnouts. This particular one feeds the mine scene track. Since that turnout sits right above a 1x4 pine board of the framework, I couldn't install a Tortoise below it. I came up with the idea of placing it on top of the layout, but it will be hidden in a multi-story building. A plastic round tube is "buried" in the foam board, which holds the actuating rod for the throwbar. For more information, see my Tortoise Installation Ideas - Above-ground Installation article.
This is an updated overall view of North Ogle.
And here is one of Closet Mountain.
This is what you see when you enter the room.
And this is the overall view of the main line turn-back loop. You can clearly see the Tortoise sitting on top of the layout.
I wanted to continue to add some more backdrop photos, so these were installed behind the North Ogle yard. The lower half was painted and had ground foam applied.
I thought the control panel of North Ogle drew too much attention, so I decided to apply scenery material to it as well.
I bought this rock mold which has a natural tunnel portal in it. I cast one of the North Ogle entrance into Bears Paw Mountain.
A roll of cookie dough making sheet was just the perfect size for the tunnel portal. It is used to make sure the rock casting provides enough clearance for the equipment and to hold it in place while the glue sets.