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Three Florissant Scientific Society Field Trips, June 10, 24, & July 22

            Sunday, June 10, 1:00 p.m., Trip to examine transported boulders (alluvial or… glacial?) in the “Wind Gap” on Dinosaur Ridge.  We will gather together at the Stegosaurus Parking Lot on the southeast corner of the I-70/Rt. 93/US 40 intersection. If that lot is full (it's not very big), folks can park over at the Wooly Mammoth lot on the northwest corner and carpool back to the Stegosaurus Lot. Meet at 1:00 p.m., no picnic.

            “Bring equipment like notepad, pencils, measuring tape, and camera on your cell phone. We will hike up the west side of the Hogback on the Dakota Ridge trail and along the top to the wind gap. There we will map, identify, and measure the glacial[?] boulders and any orientation that we can see, that occur in the so-called U-shaped water gap. We will look for any other evidence of glaciation we can find. Dress for wind (it's called the wind gap for a reason). The hike is easy once you are on top of the Ridge - we will pause and rest on our way up to the top from the parking lot. After we think we've seen every glacial erratic there that can be found, we'll return to the parking lot. [P.S., the ?’s are added, mine; Beth believes that these boulders are a glacial deposit.]

            Sunday, June 24, Central City Glacial[?] Gravels This FSS trip will be on the last Sunday instead of the 3rd Sunday (to avoid Father's Day the week before) and we will meet at the Central City Parkway roadcut at the top of the hill to map MORE glacial boulders. There we will take systematic samples and measure them. [Beth claims that…] “Pete [if he’s here] will identify ALL of the rocks!” Please check with Beth to confirm the exact meeting time (probably 1 p.m.) and exact directions to this roadcut site:, 303-986-9693. The Colorado Scientific Society visited this location on their April 15 field trip.

            Sunday, July 22, Bear Creek Lake Park, Fossil-bearing Cretaceous Marine Strata. This FSS trip will be in Bear Creek Lake Park, located at the Morrison Road (Rt. 8) exit off C-470. We will have lunch (12 noon) at the Skunk Hollow Pavilion, then hike along the creek to a nice outcrop of oyster and clam shells under the C-470 bridge, which Arthur Lakes mapped in 1877. Then we will return to the picnic area and drive down to his other site where he found a Pachyrhizodus jawbone and teeth. Lew Kleinhans, who is something of an expert on the local strata at this site deposited in the Western Interior Seaway, hopes to be along to add his comments and insights.  No collecting if you find stuff (this is a Lakewood City Park).  For entry, a day pass ($10, or $5 for seniors) or annual City of Lakewood-Bear Creek Lake Park Pass is required.

            The Florissant Scientific Society is an informal group that meets once a month for a field trip or lecture, most anywhere in or beyond east-central Colorado.  Usually, the group meets at noon for a potluck lunch (indoors or outdoors depending on the location, season, and weather) and, then has the talk or field trip.  There are no dues or formal membership list; anyone interested is always welcome, and to be on the FSS mailing list, write to Beth Simmons, , 303-986-9693.


Tues., June 12, WMMI (Western Museum of Mining & Industry) Speakers’ Bureau Lecture, “An Introduction to Ore Microscopy” by Dan Kile (USGS, retired). The lecture will begin at 7:00 pm (doors open at 6:30 pm). $5 per person, free for museum members. Please RSVP to 719-488-0880 or email . At 225 North Gate Blvd., Colorado Springs.


Thurs., June 14, 4:00 p.m., “History of the Creede Mining Site“, the first in a series of “EDTalks”, in the Boettcher Room at the CSM Arthur Lakes Library (1400 Illinois Street, Golden, Colorado). “Ed Raines, Collections Manager at the CSM Geology Museum and recognized expert on Colorado minerals and mining history, will present a series of talks with an in-depth look at important mining districts of Colorado focusing on their history and geology. All are welcome. The full schedule of talks will be:

            June 14, 4 p.m., History of the Creede Mining Site

            June 21, 4 p.m., Geology of Creede, Colorado

            August 2, 4 p.m., History of the Gilman mines

            August 9, 4 p.m., Geology of Gilman, Colorado


June 15-17, Victor, CO Gem and Mineral Show, Victor, CO; see .


Sat., June 16, “Dinosaur Ridge Brontos and Brews Festival”. “Colorado Brewers, Music & Dinosaurs; Guinness World Record Attempt & Family-Friendly Carnival”, 10 a.m. – 4 p.m. [Striving for “The Most People Dressed in Dinosaur Costumes”].  See for more info.


Fri.-Sat.-Sun., June 29-July 1, San Juan County Gem & Mineral Show, hosted by the San Juan County [N.M.] Gem and Mineral Society. McGee Park, Farmington, NM.  Free admission; 10-6 Fri. & Sat., 10-5 Sun.


July 6-8, Four Corners Gem & Mineral Show, La Plata County Fair Grounds, Durango, CO, sponsored by the Four Corners Gem & Mineral Club. 10 a.m. – 6 p.m. daily.


Tues., July 10, WMMI (Western Museum of Mining & Industry) Speakers’ Bureau Lecture, “Colorado Fuel & Iron”, by Victoria Miller. The lecture will begin at 7:00 pm (doors open at 6:30 pm). $5 per person, free for museum members. Please RSVP to 719-488-0880 or email . At 225 North Gate Blvd., Colorado Springs.


July 12-15, 9 a.m. – 5 p.m. daily, there will be a “Home Rock Show (Sale)” by John Haney, 4242 Thompson Court, Denver CO. 80216 (south of I-70, east of York St. & west of Steele St.). “Rough rock, slabs, cabs, fossils, amber, turquoise, minerals, crystals, gemstone bowls & boxes, lapidary equipment & supplies; discounts for lapidary students.”  Contact,, 303-296-8268.


Aug. 3-5, Creede Rock & Mineral Show, at the Creede Underground Mining Museum and Community Center, Creede, Mineral County, CO.  10 a.m. – 5 p.m. daily; see .


Sat.-Sun., Aug. 4-5, 2018, A symposium on Minerals from the Metallic Ore Deposits of the American Southwest, sponsored by the Friends of Mineralogy, Colorado Chapter, and the Friends of the Colorado School of Mines Geology Museum.  To be held on the CSM campus.  It will include at least 1½ days of presentations, a welcoming party and/or evening banquet, and probably one or more field trips.  Presentations are invited! To offer to give a presentation, please write to .  I’ll share more information about this symposium as soon as it is available.


Aug. 9-12, Contin-Tail rock & mineral show, Buena Vista Rodeo Grounds, Buena Vista, CO; see


Aug. 16-19, Woodland Park Rock, Gem, & Jewelry Show, Woodland Park, CO; see


Aug. 17-19, Lake George Gem & Mineral Show, sponsored by the Lake George Gem and Mineral Club, Lake George, CO.  See


Sep. 7-15, Colorado Mineral and Fossil Fall Show, Crowne Plaza Hotel - Airport, 15500 E. 40th Ave. Denver, CO.


Sep. 8-16, Denver Coliseum Mineral, Fossil, and Gem Show, Denver Coliseum; see


Sep. 12-15, Denver Fine Mineral Show, Denver Marriott West, 1717 Denver West Blvd.; see


Sep. 14-16,  51st annual Denver Gem and Mineral Show, Denver Mart, 451 E 58th Ave., Denver, CO.  Minerals of Mexico is the 2018 show theme. See


Sep. 20, Colorado Scientific Society Student Paper Night; oral or poster presentations by graduate (or undergraduate) students on their earth science research topics, with an award given for the best presentation. To be held at the Arbor House, Maple Grove Park, 14600 W. 32nd Ave., Golden CO. For more information (including for students who wish to apply to present a paper) see .


Thurs., Oct. 18, 7:00 p.m., Colorado Scientific Society October meeting, “Structural Geology of Colorado” by Ned Sterne, plus a possible 2nd speaker.  Shepherd of the Hills Church, 11500 W. 20th Ave., Lakewood.


Nov. 10-11, 39th annual New Mexico Mineral Symposium, at New Mexico Institute of Mining & Technology, Socorro, NM; see .


Thurs. Nov. 15, 7:00 p.m., Colorado Scientific Society November meeting, “Geothermal Energy”, by Jeff Winick, DOE, plus a possible 2nd speaker. Shepherd of the Hills Church, Lakewood.


Nov. 16-18, Denver Area Mineral Dealers Show, Jefferson County Fairgrounds, Golden CO. Free admission, public welcome.



One more announcement, the Program & Abstracts, Field Guidebook, and video recordings of many of the presentations given at the July 20-24, 2017 "Gold and Silver Deposits in Colorado Symposium" is now available for free viewing and download online via the Colorado School of Mines Library website, at .



For more lecture series during the year see: (most of the universities and societies do not hold seminars during the summer, but some groups (Denver Mining Club, Florissant Scientific Society) continue to meet.

Colorado Beer Talks (2nd Tuesday, 6-8 p.m.), Windy Saddle Café, 1110 Washington Avenue, Golden, “Golden’s grassroots version of TED talks, Expand your mind with a beer in your hand”,

Colorado Café Scientifique in Denver, monthly lectures on science topics held either at Blake Street Station or Brooklyn’s, Denver; open to the public, no charge other than refreshments you may choose to purchase; see .

Colorado Scientific Society (3rd Thursday, 7 p.m.), see . Meets at Shepherd of the Hills Church, 11500 W. 20th Ave., Lakewood CO, except when noted.

CU Geological Science Colloquium (Wednesdays, 4 p.m.) see

CSU Dept. of Geoscience Seminars (Fridays, 4 p.m.), see

Van Tuyl Lecture Series, Colorado School of Mines, (Thursdays, 4 p.m.):

Denver Mining Club (Mondays, 11:30), see .

Denver Region Exploration Geologists Society (DREGS; 1st Monday, 7 p.m.),

Florissant Scientific Society (FSS); meets monthly in various Front Range locations for a lecture or field trip; meeting locations vary, normally on Sundays at noon; all interested persons are welcome to attend the meetings and trips; see for details and schedules.

Nerd Night Denver is a theater-style evening featuring usually 3 short (20-minute) TED-style talks on science or related topics; held more-or-less monthly at the Oriental Theater, 4335 W. 44th Ave., Denver; drinks are available; for ages 18+.  Admission is $6 online in advance, $10 at the door. See .

Rocky Mountain Map Society (RMMS; Denver Public Library, Gates Room, 3rd Tuesday, 5:30 p.m.),

Western Interior Paleontology Society (WIPS; Denver Museum of Nature & Science, 2nd Monday, 7 p.m.), . Meetings are held either in the Ricketson Auditorium or the Planetarium at the Denver Museum of Nature & Science, unless otherwise noted



Thanks to Peter J. Modreski for keeping us up to date!

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