The Yakima county commissioners are authorized to acquire such real property, easements or rights in river-related lands in the Yakima river conservation area, together with such real property, easements, and rights as are necessary for such conservation and parks purposes in any manner authorized by law for the acquisition of lands for conservation, parks and parkway purposes: PROVIDED, That only the Yakima county commissioners shall have the power of eminent domain for the purposes of this chapter.
RCW 79A.05.770