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March 5, 2004 <br />Page 3. <br />ing saturated gravels over time. More importantly the con- <br />tinuously wet gravels have created 'collapse-structures' in <br />heretofore unknown - but suspected - tunnels and cavitous 'dog- <br />holes' whose origins were 'high-grading' miners in the 1930s. <br />('WARNING!' signs will again be posted - for the 3rd time - <br />this season. The previous signs were taken down and discarded <br />by what the owners suspect were 'mountain-bikers' who, in recent <br />years, attracted by the varied and unique topography of the <br />Gumaer rampantly traverse the property). <br />Approximately one-half - the southern half - of the Columbia <br />Ditch has either been intentionally abandoned and/or otherwise <br />unused and not maintained in recent years co-incident with the <br />decline in gold placer mining in the area (in particular, the <br />placers south of the Alma Placer which the ditch used to serve) <br />as well as changes in land use in those areas where real estate <br />development has begun. Indeed, the recent Alma Placer submittal <br />to the Board is of-a-piece of what is occurring in the immediate <br />area. <br />The effective terminus of the Columbia Ditch at this writing <br />is at that location where the gate-valve empties wash-water <br />from the ditch terminus at that juncture point where the Alma <br />and Gumaer properties 'touch' each other in - SE4NE~, Sec. 12; <br />T. 9 S., R. 78 W, or about 1000 feet east of the current washing <br />plant and which water has a vertical fall of about 60 feet in <br />that distance to the plant. While it beyond the intent and <br />ken for this writer to advise any miner as to how to conduct <br />his mining operation(s) - generally a most secretive affair <br />in gold placer mining - there is no inhibition for this writer <br />to suggest to anyone how to improve his water delivery system <br />to his washing plant - if for no other reason than to mitigate <br />continuing damage to this writer's property under the present <br />circumstances. <br />On Mine Plan Map 'C-2' (in the recent submittal) there is a <br />stated designation 'Columbia Ditch water takeoff channel' - <br />a very old channel - and which has as its source another ditch <br />water point-of-diversion about 1900 feet northwest of the pre- <br />viously mentioned and currently used gate-valve location. The <br />distance between the two points-of-diversion - the approximately <br />1900 feet co-incides almost perfectly - and completely~,tirthat <br />portion of the Columbia Ditch that traverses the Gumaer property, <br />or, the very portion of the ditch which has been saturating <br />the Gumaer property. While it is understood that a water exit <br />from the ditch is more efficient and effective at the current <br />gate-valve location - with todays' relatively cheap prices for <br />for all manner and types and sizes of flexible, 'ribbed', <br />plastic-type temporary piping of large diameter installed in <br />