Boulders & Cobbles Ohio Stone offers a line of cobbles as well as bulk boulders from 1′ to 3′ and 3′ to 5′ diameters Southern Buff 3″-5″ Irregular Wall Stone and Jumbo Flagging Granite Cobbles Canyon Tan Accent Boulders and Chunks Canyon Tan 25″ Chunks Brown Buff Boulders Canyon Tan Large Decorative Aggregates Rustic Buff Stackable Decorative Rip Rap Gray Gorge Boulder Cobbles/River Jacks Gray Buff Boulders Canyon Gray & Tan Accent Chunks and Boulders Canyon Gray Accent Boulders Canyon Tan Accent Boulders River Jacks/Cobbles River Jacks /Cobbles River Jacks/Cobbles Rustic Buff Accent Chunks Rustic Buff Large Stackable Rip Rap Rustic Buff Large Stackable Rip Rap Rustic Buff Snapped Jumbo Flagging Southern Buff Cut Drywall and River Jacks Cascade Mountain Boulders