
Yellowstone River by Sean Munson

Yellowstone River by Sean Munson

Irrigation Dreams 2 by Michael Speed

Yellowstone River by Sean Munson

Pompey's Pillar National Monument by Brett Whaley

Nibbe, Montana by Postmarks from Montana

Setaria verticillata by Matt Lavin

Setaria verticillata by Matt Lavin

view from Pompeys Pillar by Sean Munson

Worden, Montana 59088 by Postmarks from Montana

Historic View by Trevan Hiersche

cctv by Sean Munson

Setaria verticillata by Matt Lavin

Set In Stone by Trevan Hiersche

view from Pompeys Pillar by Sean Munson

View from Pompey's Pillar National Monument. Yellowstone County Montana. August 9 2016. by Dan Haneckow

View toward the Yellowstone river from the boardwalk going to the top of Pompay's Pillar by Chris (Midland05)

View from Pompey's Pillar National Monument. Yellowstone County Montana. August 9 2016. by Dan Haneckow

Pompeys Pillar, Montana 59064 by Postmarks from Montana

Andropogon gerardii by Matt Lavin

View from Pompey's Pillar National Monument. Yellowstone County Montana. August 9 2016. by Dan Haneckow

the Yellowstone River by rscottjones

Downstream Yellowstone River by kevin-palmer

Pompeys Pillar National Monument by 10 K

IMG_8968 by rscottjones

Pompey's Pillar National Monument by rscottjones

Andropogon scoparius by Matt Lavin

Andropogon gerardii by Matt Lavin

W Clark July 25, 1806 by otaku

Pompeys Pillar National Monument MT Yellowstone river (#0486) by DB's travels

Pompeys Pillar, from the old parking lot by rscottjones

Agropyron trachycaulum by Matt Lavin

Sporobolus airoides by Matt Lavin

native petroglyphs by rscottjones

Clark's signature by rscottjones

replica Clark engraving by rscottjones

IMG_8970 by rscottjones

Clark's signature by rscottjones

natl historic landmark plaque by rscottjones

Pompey's Pillar National Monument by Brett Whaley

the new visitor center by rscottjones

other engravings by rscottjones

DSC_9997 (Copy) by pandjt

day4-22 by mwahlsten

Elymus macounii by Matt Lavin

Red Sun River by kevin-palmer

Pompeys Pillar National Monument by swirey

DSC_9972 (Copy) by pandjt

Pompeys Pillar by Chris (Midland05)

Pompeys Pillar Sunset by kevin-palmer

DSC_9990 (Copy) by pandjt

Bundy Bridge Sunset by kevin-palmer

Smoky Yellowstone Sunset by kevin-palmer

DSC_9963 (Copy) by pandjt

view from Pompeys Pillar by Sean Munson

Ruined by kerch

Pompeys Pillar by Sean Munson

Atop Pompey's Pillar by kevin-palmer

Pompeys Pillar by Sean Munson

52 Weeks - Week 18 - Abstract by Lampy03