Mike and Carol, Not all artifacts need to be curated in a climate controlled environment. Just about all stone, most of the ceramics and glass, and most architectural materials could just be stored in a secure building. Things that would suffer from spalling (glazes off ceramic paste, limestone sculptures, unfired adobe, composite architectural elements, and organics are better candidates for climate control. At the federal Partnerships for Preservation conferecne in Berkeley about five years ago, there was talk of using ammunition bunkers for the bulk material. I personlly feel that material salvaged from sites that were destroyed should not be culled because the sample is the mitigation that the NEPA or Section 106 document said would be preserved in exchange for total destruction of the rest of the site. I have always felt that if an outside party (American Indian Movement, Sierra Club, etc.) were to sue a museum or agency for culling the mitigation sample, they would win big time. Ron May Legacy 106, Inc.