Eagle Creek to Hole in the Wall

<a href="https://thedyrt.com/camping/montana/eagle-creek-developed-boat-camp" target="" rel="" title="Link: https://thedyrt.com/camping/montana/eagle-creek-developed-boat-camp">Eagle Creek Developed Boat Camp Camping | The Dyrt</a><br>47.91270061, -110.05790036<br>Tent Sites and Dispersed<br><br>

Citadel Rock is a shonkinite intrusion in north central Montana along the Missouri River. This landmark is accessible by boat only. About one mile downstream from the landmark is the Hole-in-the-Wall boat-camp. The BLM maintains this campground which includes vaulted toilets, three-sided log shelters and fire rings. The camp’s namesake, a geographic sandstone formation, is aptly named Hole-in-the-Wall.

These are fine-grained igneous rocks, dominated by dark-colored minerals, occur as dikes, sills and stocks injected into fractures in the Cretaceous age sandstones and shales. They range in age from Tertiary to late Cretaceous. They are more resistant to weathering than the enclosing sedimentary rocks, causing them to form promontory features in the surrounding terrain.

<a href="https://thedyrt.com/camping/montana/hole-in-the-wall-developed-boat-camp" target="" rel="" title="Link: https://thedyrt.com/camping/montana/hole-in-the-wall-developed-boat-camp">Hole-in-the-Wall Boat Camp Camping | The Dyrt</a><br>47.81950014, -110.06379997<br>Drive In and Boat In&nbsp;<br>Tent Sites<br>(877) 256-3252

<a href="https://www.nps.gov/places/white-cliffs.htm">https://www.nps.gov/places/white-cliffs.htm</a><br><br>On May 31, 1805, the expedition passed through the White Cliffs region of the Missouri Breaks. Lewis characterized the landscape as exhibiting “a most romantic appearance,” and further described the distinctive geography, writing “The bluffs of the river rise to the hight of from 2 to 300 feet and in most places nearly perpendicular; they are formed of remarkable white sandstone which is sufficiently soft to give way readily to the impression of water; two or thre thin horizontal stratas of white free-stone, on which the rains or water make no impression, lie imbeded in these clifts of soft stone near the upper part of them; the earth<br>on the top of these Clifts is a dark rich loam, which forming a graduly ascending plain extends back from ½ a mile to a mile where the hills commence and rise abruptly to a hight of about 300 feet more. The water in the course of time in decending from those hills and plains on either side of the river has trickled down the soft sand clifts and woarn it into a thousand grotesque figures”. Taken by the seeming architectural quality of the natural rock formations, he wrote that “nature presents to the view of the traveler vast ranges of<br>walls of tolerable workmanship, so perfect indeed are those walls that I should have thought that nature had attempted here to rival the human art of masonry had I not recollected that she had first began her work.”<br><br><span>The White Cliffs are located in the&nbsp;</span><a href="https://www.blm.gov/programs/national-conservation-lands/montana-dakotas/upper-missouri-river-breaks" target="" rel="">Upper Missouri River Breaks National Monument</a>, which was established in 2001. The picturesque landscape is primarily characterized by formations of Virgelle Sandstone that have eroded over millions of years. The area is publicly accessible by water and land.<br>