In the summer of 1865, General Patrick E. Connor led a column of troops from Fort Laramie into the Powder River Country of northern Wyoming. The Powder River Expedition's mission was to make war on the Indians and punish them, so that they would be forced to keep the peace. On August 28th, with the column located on Prairie Dog Creek, Pawnee Scouts arrived with information of an Arapahoe village encamped on the Tongue River. Following a night march with 250 soldiers and 80 Pawnee Scouts, Connor's force attacked Black Bear's Arapahoe village while the Indians were in the act of packing to move. The soldiers overran the camp and pushed the Indians 10 miles up Wolf Creek. The Indians fought a desperate rear guard action, protecting their families and eventually forcing the soldiers to withdraw. During this action, other soldiers burned the camp and its supplies, making it a funeral pyre for their dead. Indian casualties included 64 warriors and several hundred ponies. As the soldiers withdrew the Indians advanced, recapturing several of their ponies, and continued harassing the column for several days. Connor's column marched back to Fort Laramie following the establishment of Fort Connor on the Powder River near present-day Kaycee.

The site is open to the public.

Website does not specify any interpretive services available at the site.

This site commemorates a battle fought on July 28, 1864, between troops commanded by General Alfred Sully and Sioux Indians. Sully's 2,200 troops, with the aid of artillery batteries, scattered the encamped village reported to contain 6,000 warriors, with losses of 5 soldiers and perhaps 100–150 Indians. There is a marker on the site.

The site is open to the public.

Website does not specify any interpretive services available at the site.

Harrison's tomb and monument contains the remains of William Henry Harrison, ninth president of the United States. An obelisk of Bedford limestone, with marble entranceway, rises 60 feet above the tomb. Harrison, who was born in Virginia in 1773, spent most of his adult life in Ohio and Indiana. He served as secretary to the territorial governor, senator, representative, and president, but he is most famous as a military hero. Harrison commanded the western army during the War of 1812.

The tomb is open to the public.

Website does not specify any interpretive services available at the site.

This roadside monument marks the area where Major Daniel McCook died during the battle of Buffington Island. Daniel McCook, an attorney, came to Ohio from Pennsylvania in 1826, eventually settling in Carrollton. During the Civil War, Daniel, his eight sons, and his brother, John, and his five sons were known as the "Fighting McCooks. " Three of Daniel's sons were killed in the other Civil War battles.

The site is open to the public.

Website does not specify any interpretive services available at the site.

Named for the broad Muskingum floodplain, the three-acre Big Bottom park is the site of a skirmish between Ohio Company settlers and some Delaware and Wyandot Indians on 2 January 1791. The Big Bottom massacre marked the start of four years of frontier warfare in Ohio, which only stopped when General Anthony Wayne and the Indian tribes signed the Treaty of Greene Ville.

Website does not specify any interpretive services beyond signage.

Near this area, a wooden picket fort was constructed around 1831 by Mexican forces in anticipation of trouble with Anglo immigrants. The fort apparently was named for a camp of Lipan Apaches in the vicinity. In 1835, the small guard force that held the fort surrendered it to Texan forces without a shot being fired. In 1842, a battalion of Texas volunteers camped in this area. In an attempt to lay claim to the territory between the Nueces River and the Rio Grande, the camp was seized by Mexican general Antonio Canales, but the Mexican forces later retreated. Around 10 years later, during the Mexican War, troops under General Zachary Taylor passed through this area on their way to the Rio Grande.

The site is open to the public.

Website does not specify any interpretive services available at the site.

This site honors George T. Johnson, Company G, Third Illinois Cavalry, who drowned in the lake during the 1863 Sibley expedition. There is a marker on the site.

The site is open to the public.

Website does not specify any interpretive services available at the site.

This site was used as the July 3-4 campsite of the 1863 Sibley expedition. There is a marker on the site.

The site is open to the public.

Website does not specify any interpretive services available at the site.

Built about 1750, Boxwood Hall became the residence of Elias Boudinot, president of the Continental Congress that ratified the Peace Treaty with Great Britain. George Washington visited his friend Boudinot in 1789 on his way to New York for his first inauguration.

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This site marks the location of a 200-man military post built in 1867. Although building locations and the dry moat, once eight feet deep, are still clearly discernible, nothing else remains of the original fort or its 12-feet-high sod and log stockade. There is a marker on the site.

The site is open to the public.

Website does not specify any interpretive services available at the site.