- Already did that. The Corps of Engineers has mile marker 0 in Grafton. The 24K USGS map is not real clear but it also appears to show it in Grafton. The USGS electronic NHD data shows it at Calhoun Point where the rivers actually meet for the first time. So what I am looking for is some official definition. Besides answering some questions about the long hike to the overlook to make sure people go up there (talk about a great view!), I am going to ask them to put in their log where they think the confluence actually is and why. My preference is to have some kind of official definition to apply to the situation. But if I cannot find one, I will let them just say what they think. Jim Bensman "Nature Bats Last" > -----Original Message----- > From: geocaching-bounce@xxxxxxxxxxxxx [mailto:geocaching- > bounce@xxxxxxxxxxxxx] On Behalf Of Mike Lusicic > Sent: Monday, December 06, 2010 7:36 PM > To: geocaching@xxxxxxxxxxxxx > Subject: [GeoStL] Re: What is the definition of a confluence or river > mouth? > > - > You might want to look into mile markers on the river. For the IL > river, > they should end at the confluence. That should get you within a mile of > where they consider the confluence. > > On 12/6/2010 6:59 PM, Jim Bensman wrote: > > > > I am working on a Earth Cache overlooking the confluence of the IL > and > > MS rivers with a great view that hopefully will be ready for the New > > Year Event. The theme is going to be where is the actual confluence. > > Since there are several islands at the confluence, where the > > "confluence" is actually is not exactly clear. Some say it is at > > Calhoun Point where the waters meet and some say it is 2 miles > > downstream in Grafton after the islands. I cannot find any kind of > > "official" definition. I did lots of googling but could not find > > anything I would call official or specific enough to determine where > > the confluence actually is. Does anyone know of a definition I could > > use? Thanks! > > > > Jim Bensman > > "Nature Bats Last" > > > > > **************************************** > For List Info or To make _ANY_ changes to your account, including > unsubscribing from this > list, click -----> //www.freelists.org/list/geocaching > > Missouri Caches Scheduled to be Archived http://tinyurl.com/87cqw > Missouri Geocaching land policies --> http://tinyurl.com/lgyy84 > Missouri Geocachers Forums --> http://mogeo.ipbhost.com/index.php > Missouri Geocachers Calendar ---> > http://mogeo.ipbhost.com/index.php?app=calendar **************************************** For List Info or To make _ANY_ changes to your account, including unsubscribing from this list, click -----> //www.freelists.org/list/geocaching Missouri Caches Scheduled to be Archived http://tinyurl.com/87cqw Missouri Geocaching land policies --> http://tinyurl.com/lgyy84 Missouri Geocachers Forums --> http://mogeo.ipbhost.com/index.php Missouri Geocachers Calendar ---> http://mogeo.ipbhost.com/index.php?app=calendar