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001703 40 Project A.2 in this document for more details). In FY06, the Cultural Program hopes to continue this aeolian study with one year of additional funding. In November 2004, a high-flow experiment was conducted to test a variety of hypotheses that resulted from the 1996 Beach Habitat Building Flow. The 1996 BHBF presented an opportunity to study the effects of high flow discharge from Glen Canyon Dam on alluvial terraces and margin deposits along the river corridor. The flow was expected to provide system-wide mitigation to most cultural sites in the Colorado River corridor through the accumulation of additional sediment. The overall findings of the cultural resources studies strongly suggested that the 45,000 cfs BHBF flow had either no effect, no adverse effect, or a beneficial effect on cultural resources (Balsom and Larralde, 1996.) These findings lent support to the original contention that beach habitat-building flows above power plant capacity could offer system-wide mitigation for cultural resources. One location in the Glen Canyon reach, did experience loss of sediments in a way that, in the long run, could be detrimental to cultural resources(Balsom and Larralde, 1996), but three of the four study areas gained sand, and some of the newly deposited sand appears to have been redeposited over subsequent months at higher elevations through wind action (Hazel et al. 2001.) The experimental high flow of November, 2004 provided an opportunity to reassess the potentially beneficial aspects of bar-building flows near archaeological sites. One location in the Palisades area that had been studied in 1996 was remapped both before and immediately following the 2004 experimental flow, and we will be continuing to track the fate of sand deposits in that area by means of repeat mapping through FY06. Recreational Resources - Recreational resource:s encompass several diverse, tangible elements: the blue-ribbon trout fishery at Lees Ferry, the challenging whitewater rapids in the Colorado River, and camping beaches in Grand Canyon. Recreational resources also encompass experiential attributes, such as opportunities to experience solitude, natural quiet, and physical challenges in a wilderness-like environment. Recreational issues of specific concern to the GCMRC sociocultural program include changes in the size and availability of camping beaches due to dam operations, changes in the quality of recreational experiences within the CRE (including trout sport fishing, recreational river trips, and wilderness-dependent recreational opportunities) due to effects of dam operations, plus the economic impacts to the recreation industry from varying flow regimes. GCMRC has supported studies in all of these areas. GCMRC FY2006 Annual Work Plan (Draft February 15,2005)