Green Flash offers a distinct slice of Colorado trad climbing that balances straightforward movement with moments demanding careful gear choices and focused attention. Positioned on the left side of the green face at Tick Rock, this single-pitch route climbs an engaging dihedral and arete, navigating features that challenge both technique and judgment. From the very first step beneath the edge of the rock face, climbers are met with a striking stretch of large quartz crystals that catch sunlight and provide natural holds before veering right into a clean, hands-on dihedral. This transition marks the route’s core: a steady progression up the dihedral and along the flanking arete, culminating in anchors perched just above.

The rock here demands respect. While generally solid, sections show signs of flakiness, urging climbers to move thoughtfully and test placements tactfully. Protection focuses on small to medium-sized nuts and cams, with a few longer pieces needed for secure placements. The anchors comprise three bolts, offering a reliable but minimalized top to the climb. After reaching this belay station, climbers can choose to descend by lowering directly or opt for a short scramble to join the anchors of the adjacent PTSD route, allowing for a satisfying link-up with additional climbing.

Tick Rock itself sits within the rugged arms of Big Thompson Canyon, casting dramatic shadows over Estes Park Valley, Colorado. Here, morning light filters through evergreen stands, casting dappled patterns on the cliff below and enlivening the quartz veins with a soft glow. The setting draws a quiet but steady crowd of trad enthusiasts seeking a climb that feels authentic without overwhelming complexity.

For planning, note that the route’s compact length of approximately 80 feet fits easily into a half-day climbing window, especially when combined with nearby lines. Access involves a well-tended trail with a moderate approach through mixed terrain, including brush and talus. Weather patterns typically favor clear skies from late spring through early fall, though afternoon thunderstorms in the summer warrant early starts and a keen eye on the forecast. Footwear with solid edging and toe control will help with the varied holds, while hydration is essential given the sun exposure, particularly on the approach.

Green Flash represents a rewarding climb that feels raw but approachable. It invites climbers to read the rock carefully, manage their gear with intentionality, and relish a dynamic route that combines solid climbing with a quiet slice of Colorado’s geological character. Whether starting your day here or winding down after heavier objectives, the experience connects you directly with the rock and rhythm of Tick Rock’s steep contours.