Today we visited Zelph's mound, Nauvoo, the Zarahemla site, and a Hopewell mound now used as a cemetery.
Me at the Nauvoo temple. 
View of Nauvoo temple from across the river.
Zarahemla temple site, located on a Hopewell mound directly across the Mississippi River from Nauvoo. The orange flag marks one corner of the structure, which will be excavated later this year. I framed the photo so the tip of the flag points to the Nauvoo temple across the river, although you can't see it because of the trees. Doctrine & Covenants Section 125, Verse 3 mentions the area, where Joseph Smith bought vast acreage (more than in Nauvoo). "...build up a city unto my name upon the land opposite the city of Nauvoo, and let the name of Zarahemla be named upon it."
Locating the temple site.
Little Mound Cemetery. This "little" Hopewell mound in Iowa, which is actually several hundred feet long, was used as a cemetery by European settlers beginning in the 19th Century.
Here is a replica of spear point found in skeleton buried in the mound.
This is the dip between two large mounds that, together, are called Zelph's Mound. It's official name is the Naples-Russell Mound #8, and it's located on the west bank of the Illinois River just north of where Interstate-72 crosses the river. It was on this same Hopewell mound that the Prophet Joseph Smith, while on Zion's Camp, discovered the bones of an ancient Lamanite named Zelph.
"The brethren procured a shovel and a hoe, and removing the earth to the depth of about one foot, discovered the skeleton of a man, almost entire, and between his ribs the stone point of a Lamanitish arrow, which evidently produced his death. ...the visions of the past being opened to my understanding by the Spirit of the Almighty, I [Joseph] discovered that the person whose skeleton was before us was a white Lamanite, a large, thick-set man, and a man of God. His name was Zelph. He was a warrior and chieftain under the great prophet Onandagus, who was known from the Hill Cumorah, or eastern sea to the Rocky mountains").
Woodhenge:
How it looked anciently:
Pickets of fences:
