I'd think that the amount of detail to include in the maps depends on the purpose and target audience.  If the purpose is to maintain a record, then everything should be on it, linked, if possible, to copious information.  On the other hand, If the target audience is visitors or prospective visitors, then show them the most prominent, visually interesting features, with informative but easily digestible descriptions. As far as showing features that are no longer active, there are several levels of "no longer active."  Features that don't put out water anymore but still have an intact vent could very well reactivate at some point.  Daisy's Thief, for example, has been quiet for decades, but it's still there.  I'd be surprised if we've seen the last of it.  Not that I'd put it on a tourist map, but on a reference map, absolutely. Features that have been so thoroughly buried that they can no longer be found probably still ought to go on a reference map, just because we've often seen that new features tend to break out at or near the site of a buried feature.  The "Sput" geysers broke out near the site of North and East Triplets, for example.  Phoenix Geyser broke out from the buried ruins of Gibbon Hill Geyser.  Norris Pool, with its gaping, sinter-lined crater, is probably a spring that was buried long before recorded history that finally dug itself out.  Bottom line, unless the water and energy have completely shifted elsewhere, an inactive feature is still there, even if its surface manifestations have been wiped out. Another reason to include inactive features is so that, in 20 or more years, we can match descriptions of an extinct feature to a location.  That might not seem important for a relatively stable area like the Upper Basin, but at Norris, where features come and go from year to year and decade to decade, it'd be nice to have a way to match descriptions to locations, even for features that are long gone. ---------------- Comments on this map: Errors: "West Round Spring" is probably Turtle Geyser (The Round Spring Group is not on this map--it's to the south) The southernmost "Null" is East Sentinel Geyser Omissions (these features have dots but aren't labeled): The northernmost dot in the Chain Lakes is "Clasp" Geyser The dot just south of Culvert Geyser is "Persistent" Geyser Variable Spring is one of the dots southeast of Grotto the Giant Indicator Pool is the dot next to the trail just north of the spur to Giant Bijou Geyser is the dot overlapping Catfish Mastiff is one (or two?) of the dots east of a line from Giant to Catfish Pyramid Geyser is the lonely dot just northwest of Splendid Geyser (and apparently not in a thermal area?) Cyclops Spring is the isolated dot due west of Fan Geyser Finally, the dot west of where the two trails around Daisy meet might be Punch Bowl Spring Omissions (no dot): West Sentinel Geyser is across the river from East Sentinel, but doesn't seem to have been surveyed most of Biscuit Basin, and the Purple Pool area (northwest and southeast of the areas included on the map, respectively) David Schwarz <div class="gmail_quote">On Thu, Dec 11, 2008 at 12:19 PM, carolyn loren <<a href="mailto:caroloren98@hotmail.com" target="_blank">caroloren98@hotmail.com</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div> The question with these is whether old, inactive feature names should be retained on this map.  An alternative perhaps is to have two maps, one cleaner with fewer names, and another with as many feature names as can fit.   Carolyn Loren <div> <hr>Send e-mail faster without improving your typing skills. <a href="http://windowslive.com/Explore/hotmail?ocid=TXT_TAGLM_WL_hotmail_acq_speed_122008" target="_blank">Get your Hotmail® account.</a></div> </div> _______________________________________________ Geysers mailing list <a href="mailto:Geysers@lists.wallawalla.edu" target="_blank">Geysers@lists.wallawalla.edu</a> <a href="https://lists.wallawalla.edu/mailman/listinfo/geysers" target="_blank">https://lists.wallawalla.edu/mailman/listinfo/geysers</a> </blockquote></div>