Planning commissioners have asked the Haines Borough Assembly to negotiate — and possibly purchase — an easement between Haines School and a neighboring property where a local developer is building an RV park.

For decades planners have assumed there’s an easement where the school’s rear alley runs, behind Thor’s Gym. But that assumption wasn’t accurate, according to a memo from borough planner Dave Long. The easement either was never officially recorded or expired decades ago,…