Colorado · National Monument trail

Harpers Corner Trail Stop 10

in Colorado

Take a closer look at the rocks along the trail; many of them bear a colorful crust of lichens. Small as they are, lichens are important pioneers, for they can grow on bare rock where most other things cannot. Their secret is that they are actually two organisms in one; a fungus whose sticky filaments anchor it to the rock, and an alga which uses the energy of sunlight to produce food through photosynthesis.

The fungus provides a foothold and the alga feeds them both. Lichens prepare the way for other plants by slowly breaking down the rock through chemical and physical weathering and creating soil.

States: Colorado
Trail type: National Monument trail
Centroid nearest city: Salt Lake City, UT · 152 mi · ~4 hr drive
Centroid coords: 40.5307°, -109.0110°

About Dinosaur National Monument

National Monument

This trail is inside Dinosaur National Monument, a national monument managed by the U.S. National Park Service. Conditions, road status, trail closures, and reservation requirements are published on the park's NPS page — check it before driving in, especially in winter or during major weather events.

Entrance fee: $25 per vehicle (verify current rate on the park page). An America the Beautiful annual pass ($80) covers entrance to all NPS units.

Official NPS trail page: https://www.nps.gov/places/harpers-corner-trail-stop-10.htm

Park homepage: https://www.nps.gov/dino/index.htm

Plan your hike

Practical notes

Maps + permits: long-distance trails like this often require permits for through-hiking, backcountry camping, or specific sections (especially in National Parks). Check with the maintaining organisation listed above and the relevant land manager before booking travel.

Water + supplies: water sources vary seasonally on most U.S. trails. Carry a filter and consult current trail-condition reports — through-hiker journals (PCT-L, AT Reddit, etc.) and the maintaining organisation publish regular updates.

When to go: hiking seasons vary widely with elevation, latitude, and snowpack. Through-hikers traditionally start the AT in March-April (Springer northbound) and the PCT in late April (Campo northbound). High-elevation western trails (CDT, JMT, Wonderland) generally aren't passable until July.

If you've hiked Harpers Corner Trail Stop 10 and have current notes (water sources, trail closures, permit changes), tell us at /contact — we update pages as we learn.