In 1999 , the first year the BLM kept track of the numbers , 7,000 climbers visited the Happy Boulders .
But , he says , the onslaught was far greater than the agency expected .
In 1999 , the first year the agency kept track of the numbers , 7,000 climbers visited the Happy Boulders .
But , he says , the onslaught was far greater than the agency expected .