What Is a Highball Boulder Problem?

A "highball boulder problem" is a rock climber's slang term used to refer to a high and scary boulder problem where a rope is not used for safety.

The Terrifying Guide to Highball Bouldering

V9 Bully's Highball, Boulder problem in Queanbeyan area

The Terrifying Guide to Highball Bouldering

What Is Bouldering: A Complete Guide

What Is Bouldering: A Complete Guide

Climber Daniel Woods Trades Comfort for Fear in “Highball” Bouldering

Learning to fall - Boulder Weekly

V1 A1 - Highball, Boulder problem in Aculco

Everything You Need to Know to Boulder Safely - Yahoo Sports