Here are some pages describing other designs linked to the CH&FR Railroad.
First is the original “Mini-Layout”, a simple oval on a 2×3 board.
Second is the currently “shelved” (pardon the pun) long shelf layout covering both Chestnut Hill and Frost River.
The current active layout under construction is Glover’s Bend, which has its own page.
And presently in the planning and design phase is the new Frost River Sub layout which will rather more substantially occupy the room originally slated for the Shelf Layout.