All Locations > California > Inland Empire > Perris Area > Big Rock Area

Main Slab Rock Climbing

Climbing Area Map

Areas in Main Slab

Main Slab - Lower 37 / 2 / 2 / 0 / 0 / 2 / 0 / 0 / 42

Main Slab - The Sundeck 4 / 1 / 0 / 0 / 0 / 0 / 0 / 0 / 5

Main Slab - Upper 6 / 0 / 0 / 0 / 0 / 0 / 0 / 0 / 6

Elevation:	1,604 ft
GPS:	33.83823, -117.17297 Google Map · Climbing Area Map
Page Views:	78,497 total · 429/month
Shared By:	C Miller on Jan 24, 2008 · Updates
Admins:	C Miller, Euan Cameron, Mike Morley, Adam Stackhouse, Salamanizer Ski, Justin Johnsen, Vicki Schwantes Page Updates (admin only)

Access Issue: Rebolting Complete! Details

CA State Parks officially reopened Big Rock to public access April 28th, 2018. After months of effort 53 anchors and 232 bolts have been upgraded to 1/2" X 2.75" stainless steel Powers 5-piece bolts and rings.

Description

This is the creatively named 200 foot high, west-facing granite slab which is the focal point of the area. Almost all of the routes here are easy to moderate slabs with the odd crack thrown in for variety.

Despite the easier ratings the climbs here tend to have an "old school" feel to them and may seem run-out to those unaccustomed to such routes - caveat emptor.

Getting There

Park in the fee parking area and hike in along a paved service road to reach the obvious west-facing "big rock". Plan on a 10-15 minute approach from the parking area.

53 Total Climbs

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Classic Climbing Routes at Main Slab

Mountain Project's determination of the classic, most popular, highest rated climbing routes in this area.

5.5 4b 13 IV+ 11 MS 4a 89 ● The Trough Trad Main Slab - Lower
5.5 4b 13 IV+ 11 MS 4a 69 ● African Flake Trad Main Slab - Lower
5.7 5a 15 V+ 13 MVS 4b R 44 ● Crater Maker (aka Dark Side of t… Trad Main Slab - Lower
5.7 5a 15 V+ 13 MVS 4b 45 ● Left Flake Trad Main Slab - Upper
5.7 5a 15 V+ 13 MVS 4b 36 ● Right Flake Trad Main Slab - Upper
5.7 5a 15 V+ 13 MVS 4b 24 ● Welcome to Big Rock Sport Main Slab - Lower
5.9 5c 17 VI 17 HVS 5a 48 ● Boogaloo Trad Main Slab - Lower
5.9 5c 17 VI 17 HVS 5a 34 ● Boogaloo Direct Trad Main Slab - Lower
5.9 5c 17 VI 17 HVS 5a 37 ● The Roof Trad Main Slab - Lower
5.9 5c 17 VI 17 HVS 5a 30 ● The Shroud Trad Main Slab - Lower
5.9+ 5c 17 VI 17 E1 5a 33 ● Rat Crack Trad Main Slab - Lower
5.10a 6a 18 VI+ 18 E1 5a 46 ● Frontal Lobotomy Trad Main Slab - Lower
5.10a 6a 18 VI+ 18 E1 5a 42 ● Mind Bender Trad Main Slab - Lower
5.10a 6a 18 VI+ 18 E1 5a 31 ● Edger Sanction Trad Main Slab - Lower
5.10b 6a+ 19 VII- 19 E2 5b 24 ● Let it Bleed Trad Main Slab - Upper