Tucked off the beaten path in California's High Desert near Barstow, Grandpa Simson stands as an unpretentious climbing destination that invites explorers with a taste for the raw and rocky west. The formation’s distinctive profile—easy to identify once you reach the area—offers a mix of steep and moderate faces, predominantly on the northeast and eastern aspects. Climbing here isn’t about polished routes or crowded walls; instead, it’s about embracing a rugged environment, testing your skills on less-traveled lines, and savoring the desert’s quiet charm.

The centerpiece of Grandpa Simson is its steep northeast face; however, the challenge of extensive cleaning gives way to more inviting climbs on a lower-angled east face. These routes benefit from better rock quality and an accessible gradient that rewards thoughtful movement without overwhelming technical demands. The crag hosts a handful of routes - enough to offer variety but not so many that you lose the sense of solitude. The Korean Wall routes, in particular the Korean Wall Route 2 (5.10) and Korean Wall Route 3 (5.11b), are notable classics here. They offer solid, well-regarded challenges that balance technical moves with a sense of adventure.

Getting here requires a keen eye and a bit of patience. Continuing past "The Dude Ranch," the formation appears to your right. Parking is conveniently located about 30 feet from the crag, just before the road changes to a 4x4 track leading to "The Cliffs of Insanity." This proximity provides easy gear loading and unloading without forfeiting the feel of moving deeper into a wilderness climbing experience.

The climbing experience at Grandpa Simson is framed by its desert surroundings. The High Desert environment means you can expect hot days, with cooler mornings - a consideration for timing your climbs. Seasonality shapes the best climbing windows: spring and fall deliver more temperate weather, optimal for avoiding the extremes of summer heat or winter chill. Though the description does not detail rock type or elevation specifically, the area’s reputation within the Barstow region suggests solid desert sandstone or limestone, typical for High Desert climbing. Expect some loose sections, especially on less-frequented lines, and remain cautious to keep every hold and foothold safe.

Protection demands a thoughtful rack familiar with desert climbing—bring a standard rack with emphasis on placements for cracks but be prepared for occasional face climbing bolts depending on the route. The steeper northeast face requires more commitment, while the east face routes tend to be cleaner but still mind your gear. Approach trails are short and do not demand extensive hiking, making Grandpa Simson a great choice for climbers looking for a quick but rewarding outing.

The vibe is low-key and uncommercialized - a spot where climbers come to connect with the rock on their own terms, without the distractions of crowded crags. You’ll find the singing of desert winds and the crunch of sand underfoot more often than chalked-up holds or guidebook-fueled crowds. Classic climbs like the Korean Wall Routes invite repetition and mastery, rewarding climbers who return with deeper knowledge.

Safety is paramount given the area's remoteness and sparse route traffic. Be alert to possible rockfall on steeper faces, especially early in the season after rains. The wraps in the approach and parking proximity help keep the adventure manageable but bring water and sun protection appropriate for desert expansions.

In essence, Grandpa Simson offers a focused, immersive climbing experience framed by desert highlands and approachable terrain. It’s ideal for climbers who want to balance quality, quiet, and a taste of wild California climbing. Gear up, tune your rack for desert rock, and prepare to engage directly with a formation that rewards respect and careful exploration. Grandpa Simson waits, rugged and ready to reveal its lines to those ready to climb on their own terms.