This image shows a rocky promontory called Black Rocks, a large outcropping of rocks on Presque Isle Park, on the Lake Superior shore of the Upper Peninsula of Michigan.

The description states:
A herd of native deer rooms the primeval forests of this beautiful peninsula located north of Marquette, and the waves of Lake Superior, pounding against the picturesque crags and cliffs, extend on ever ready welcome to all the pleasure seekers who invade this region.
–These rocks are at times several meters above the lake surface, and many come to dive or jump from the cliffs into the deep lake.
This card is likely from the 1950s.
Tag: postcard
Middle Isle Point, Marquette, Michigan
This colored illustration features the extreme end of Middle Island Point, a promontory of land near Marquette, Michigan.

The description states:
Attracting tourists from near and far the unusual and beautiful blue waters of Lake Superior, ever temperamental to cloud and wind; colorful rocks – red, lavender, green and black; virgin forests and abundant fishing, boating, swimming and camping facilities that make this region a sportsman’s paradise.
–The Point is now private property, so access is sometimes limited. The island in the background is Partridge Island. This card likely dates to the 1940s.
Dolomite Bluffs near Fayette, Michigan
The focus now continues across the harbor and bay to feature the distant rocky bluffs. These dolomite deposits are part of the larger Niagara Escarpment, which extends across much of northeastern North America along the U.S. and Canadian border.

There is no description on the back of the card. The formation illustrated here extends to eastern New York, and is most notable for being the same formation that the world famous Niagara Falls flows over.
This card likely dates to the 1940s.
Fayette Harbor, Fayette, Michigan
This image just along the road from the previous posting, approaching the water and small harbor where fishing boats were moored. The same rocky dolomite formation is again visible in the right background.

The description states:
FA.1 – Fayette Harbor, famed beauty spot on Michigan’s garden peninsula, locale of “The annual blessing of the Fleet”. The blessing ceremony is an ancient Catholic ritual for fishing vessels.
–There are a few small fishing boats pulled up on the far side of the harbor.
As noted in the comment below this image was ordered by a vendor in late 1960, so the picture cannot be newer than that. As these have a production lifetime, it may be a year or more older than 1960.
Fayette State Park Buildings, Fayette, Michigan
We now move to the grounds of Fayette State Park and have a closer view of the old smelter complex buildings. The forest covered rocky point shows the large dolomite deposits, some of which appear to have been used in building construction.

The description on the back states:
FAYTETTE, MICHIGAN
Ghost Town of the old iron ore days. Parts of the fine old buildings still stand and make interesting camera studies. In the background may be seen the beautiful limestone bluffs. Located on the Garden Peninsula, this is also a commercial fishing community and each year in August is held the “Blessing of the Fleet.”
–The park has more than 20 restored buildings and there are tours daily throughout the warmer months. This card likely dates from the 1950s.
Fayette State Park, Fayette, Michigan
This image is taken from almost the same location as the previous posting, showing the area of Fayette, Michigan, now Fayette State Park. Some of the buildings visible in the previous image have been demolished or are obscured by trees.

The description states:
FA-2 Fayette State Park, famed beauty spot of Michigan’s garden peninsula. Limestone cliffs and rocky shores, the ruins of the old smelters and the other buildings of the once-busy furnace town create unusual scenic and historical interest.
–The white object in the middle of the image appears to be an egret in flight.
This card likely dates from the 1950s.
Fayette, Michigan
The image here shows the buildings and surroundings of the iron smelting complex that operated at Fayette, Michigan. The body of water in the foreground is Snail Shell Harbor, a protected cove on the northern side of Lake Michigan.

There is no description on the back of the card. The main smelter buildings are at the left. Beyond the town is Big Bay De Noc, which is connected to Lake Michigan.
Diver, Big Bay de Noc, Fayette, Michigan
This image begins a series of views highlighting the Upper Peninsula of Michigan, an area promoted as the Land of Hiawatha. This photo is of a diver and assistant preparing to dive the waters of Big Bay De Noc.

The description states:
340-V
A deep sea diver ready to hunt for the alleged hidden treasure in Big Bay De Noc at Fayette, Michigan.
–It is not clear what the diver has in his hand. The tank and suit are not typical of a deep sea diver, but more of the shallow diver that used SCUBA gear, which was a fairly new invention at the time of this image.
The postcard is dated 1958.
Steven’s Motel, Mitchell, South Dakota
This image features another typical motel of the first generation of such construction in the 1930s and 1940s. The Steven’s Motel was expanded considerably after original construction.

The description states:
Steven’s Motel
On State Hwy. No 37,
One Block South of Hwy. U.S. 16
Mitchell, S.D.
Twenty new, modern units with radiant baseboard heart. Large parking area away from heavy traffic. A.A.A. Recommended. Phone for reservations. 3104. Room Phones.
–This structure no longer exists, but the site appears to be still occupied by another motel, run by the Motel 6 national chain. The card likely dates to the 1940s.
Log Cabin Courts, Hot Springs, South Dakota
This is an image of typical rustic style accommodations typical of the first generation of motel construction. Such buildings looked quite sharp and impressive when new, but tended to age poorly and deteriorated visibly in a short time, making maintenance an expensive obligation.

There is no description on this card. The cabins still exist, and the Historic Log Cabin website indicates they are still available for rent and updated to modern standards.
This image likely dates from the 1940s.