ESRI

Discover DC Boundary Stones in Maryland - NW Stone 4 (Delcarlia Reservoir Grounds) to North corner stone (Silver Spring). This is the third hike along the original boundary line between the nation's capital, Virginia, and Maryland. See stones placed every mile along the boundary survey line in 1792. These stones are the first federal monuments in the nation's capital. Initially, we will hike a short distance along the Capital Crescent Trail to view NW Stone 4, which is on Delcarlia Reservoir grounds. We will come back to our meeting location and hike north along Norton Street and Loughboro Road (restroom opportunity at Sibley Hospital) to Delcarlia Parkway. We will hike a short distance along Delcarlia Parkway and then on Spring Valley neighborhood streets to Warren Place and Delcarlia Parkway, where we will get you as close as we can to the location of NW Stone 5, which is also on Delcarlia Reservoir grounds. We will hike Spring Valley neighborhood streets to Massachusetts Avenue and Western Avenue at Westmorland Circle, and then on sidewalks along Western Avenue (NW stones 6, 7, and 8 are in front yards along Western Avenue), on trails through the northern portion of Rock Creek Park (NW 9 is adjacent to the park), and on sidewalks along streets in Silver Spring (North corner stone is just south of East-West Highway, west of 16th Street) to the Silver Spring Metro Station. Total distance is approximately 10.5 miles. We will meet 9:00 am, Friday, May 9, 2026, at the connector trail to the Capital Crescent Trail (intersection of Norton Street and Potomac Avenue NW). Parking is available along Potomac Ave. Public transportation to and from the hike also works. If you drive, you can take Metro and a bus back to your vehicle. Occasional restroom opportunities are available along the route. No pets please. All participants must sign a liability waiver at the start. SCPRO requests a voluntary donation of $2 per person to help support our all-volunteer program. Leaders are Russ Norfleet & Gary Kosciusko. You need not be a Sierra Club member to participate, but if you'd like to join, go to: http://www.sierraclub.org/virginia.

**This will be a moderate \~5 mile loop in Rock Creek Park. We will start at Meadowbrook Local Park in Chevy Chase, MD and proceed to the Boundary Bridge and into DC on the Valley Trail, cross Beach Dr to the Pinehurst Branch Trail, and loop back to our starting point on the Western Ridge Trail. It’s a beautiful walk with some ups and downs and a few stream crossings.** **Meeting Point:** **Meadowbrook Local park can be reached via Meadowbrook Lane and has space for about 30 cars. There are usually a variety of kids sports happening in the park so arrive early to find parking. There is another small lot accessible via Beach Dr. that fits about 6 cars. Cross the bridge to reach the park. Meet at the basketball courts, which are behind the stone pavilion and next to the tennis courts.** **Meeting Time:** **Plan to arrive at 9:15am so you will be able to meet everyone and sign the PATC waiver. Once the waiver is signed, we will begin the hike, targeting a 9:30am departure. We will leave on time.** **Route:** **Here is an AllTrails route in case you want to import this into a navigation device.** **https://www.alltrails.com/explore/custom-routes/rock-creek-meadowbrook-boundary-bridge-may-9-6e0b9a3?u=i&sh=fuqxr6** **Contact Info:** **Please use the comments feature for routine comments and questions, and to arrange carpools. Call/text the hike leader—Allison—if urgent for day-of** **questions or issues 202-320-6103** **Notes:** **RSVP here by 6pm the evening before. If you need to cancel, please change your RSVP by 6pm to allow others to move off the waiting list. Cancelling after 6pm may result in being designated a “no-show” which may affect your ability to sign up for future PATC hikes.** **Consider becoming a member of PATC to both enjoy the trails and support their maintenance. www.patc.net**

Let's get together to play some fun BB level Quads games at Bluemont. **Format**: Doubles **COST**: FREE **Court Type**: Outdoor grass **Minimum Skill Requirements**: Intermediate-BB (click [here](https://docs.google.com/document/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/mobilebasic) for details) \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- **Smiley Social documents:** 1. [Group Rules ](https://docs.google.com/document/d/1HrG35p_0M08leRvCp8XWG3CMkr_GL928XFabl5T6Dvg) 2. [Liability Waiver ](https://docs.google.com/document/d/1W2mq-7m99lmvd7gdWYaSUFtvVg4UGnzV6koafAbHmco) 3. [Volleyball Levels](https://docs.google.com/document/d/1PojSi4qdlRsv1msCHhvpQ43iDc4FfzQwpWCc3kafVMY/)

This event is being held in partnership with the DMV Spades Meetup Group. Direct questions to the Host, Nne-Nne Abanobi. ><><><><><><><><><><><><><> Hi All! Join us for 2nd Saturday Spades in Greenbelt, MD. Our group is friendly and welcoming. Please give us a try! 📍Hook & Reel Cajun Seafood & Bar 🦐 6002 Greenbelt Road Greenbelt, MD 20770 ⏳️ 6:30pm to 11:30pm 🌟 Join us at this PG County sports bar for food, fun, drinks.....and, of course, Spades. 😀 All skill levels are welcome! Get matched with a partner onsite. 🍷 Happy Hour Specials from 12pm to 7pm: [https://hookreel.com/wp-content/uploads/2024/01/HR_GreenbeltMD_HappyHour_Menu_24x36.pdf](https://hookreel.com/wp-content/uploads/2024/01/HR_GreenbeltMD_HappyHour_Menu_24x36.pdf) Located right off the Beltway. Free parking! Remember to support the business by ordering food/drinks. 🌟 **This event is posted in multiple groups. So, expect a nice crowd.** We look forward to seeing you!

SIGN UP on link and join our Team for the walk at Commanders Stadium Team name- “Wisher Vodka Beets Crohns” DMV Take Steps Landover, MD Starts 05/09/2026 Location Northwest (Commanders) Stadium Schedule Check-in Opens 6 PM Ribbon Ceremony 7 PM Closing Ceremony 9 PM https://takesteps.crohnscolitisfoundation.org/participants/Wisher-Vodka-Beets-Crohns

**We will honor the birthday of Param Guru ji with an in-person service with kirtan chanting and meditation. All are welcome. 🙏🏼 🙏🏼**

**Lake Artemesia Walk – College Park** Join us for a relaxed, easy-paced walk around beautiful Lake Artemesia. A chance to unwind, enjoy nature, and connect with others in a calm, welcoming setting. We’ll walk the scenic loop, take in the lake views, and enjoy light conversation along the way. All fitness levels are welcome. **Main parking lot:** **55th Ave & Berwyn Rd** College Park, MD 20740 Bring plenty of water, whatever you need for your hike, and your awesome authentic self. Keep it easygoing. RELEASE OF LIABILITY & ASSUMPTION OF RISK AGREEMENT: By being a member of this Group, RSVPing to any Activity, or participating in any Activity, You accept and agree to the terms and conditions described below: 1. You acknowledge that hiking in nature carries the risk of potential harm to yourself, including the risk of injuries such as broken bones or muscle/tendon injuries, illness, disability, or death. 2. You agree that You will at all times be responsible for Yourself and Your own safety. 3. You release and hold harmless with respect to all injury, disability, death, or loss of property, whether caused by negligence or otherwise, this group's leadership and members for the hikes that you participate in. 4. You acknowledge and agree that this Group is merely a collection of friends or potential friends who enjoy doing activities, and that in no event does any Organizer or Other Member assume any responsibility or liability for You. 5\. You agree not to sue and to release\, discharge\, waive and hold harmless all organizers and other members from and against all liabilities\, claims\, demands\, losses\, damages\, suits and proceedings\, for negligence\, carelessness or any other cause which you may have or that hereafter may accrue arising\, resulting from or related to your membership in this group or participation in any activity\.

[https://ridewithgps.com/routes/38382930](https://ridewithgps.com/routes/38382930) 24.1 miles. Picnic at Beltsville Community Center, 14 miles into the trail. Restrooms are available at the beginning, the middle, and the end of the event. This is an easy ride on relatively flat terrain and should be appropriate for all bikers and all bikes. The route is 24 miles and about 800 feet elevation gain. It should be a beautiful day. **WHERE AND WHEN WE MEET:** Bladensburg Waterfront Park, 4601 Annapolis Rd, Bladensburg, MD 20710. We meet at 10:00 and ride at 10:15am **ROUTE:** MD-Trail 1 - can be downloaded from Ride with GPS here: [https://ridewithgps.com/routes/38382930](https://ridewithgps.com/routes/38382930) We'll take the Anacostia River Trail north to the Northeast Branch Trail through Riverdale Park, around the College Park Airport to Lake Artemesia. The Paint Branch Trail takes you through the University of Maryland campus, alongside USDA research fields to Cherry Hill Rd., where we can stop and reverse the route back to Bladensburg. Mileage round trip is 24 +/- but there's more trail at either end of the ride for those who want to put in more miles. **RESTROOMS** Restrooms are available at the beginning, the middle, and the end of the event. **WHAT TO BRING:** Our bikes will always be in our sight. No additional locks are required to keep your bike safe on this trip. Bring snacks and a light lunch if you want to eat on the journey. Don't forget to bring plenty of water to stay hydrated. **OTHER INFORMATION:** FYI: membership of the Ride With GPS E-bike Lovers club is now free as [www.ebikelovers.com](http://www.ebikelovers.com/) is generating sufficient income from ads to cover the costs. Here is the link to activate your free membership: [https://ridewithgps.com/auto_approve/Club/6746/Zwa5jhttF5mJrFbN](https://ridewithgps.com/auto_approve/Club/6746/Zwa5jhttF5mJrFbN) You will have access to over 2,000 miles of curated e-bike routes. With free membership, we hope everyone will download trails before we e-bike. This is the link to the EBL Ride With GPS page: [https://ridewithgps.com/organizations/6746-e-bike-lovers](https://ridewithgps.com/organizations/6746-e-bike-lovers) For the E-bike Lovers group to be successful, we need to grow our membership carefully. Please feel free to invite other E-bike lovers, spread the word and let's have fun. Please only RSVP if you are coming, so we know how many E-bike Lovers will participate. We enjoy a nearly 100% RSVP success rate. Thank you so much for your help! As usual, non-assisted bikers are most welcome. **Your registration for this ride signifies your agreement with the terms of the disclaimer below.** **DISCLAIMER** **LIMITATION OF LIABILITY: TO THE FULLEST EXTENT PERMISSIBLE PURSUANT TO APPLICABLE LAW, NEITHER GREGORY MAASSEN, NATHAN MERRIS, RICHARD CAMER, TRIP COORDINATORS, THEIR AFFILIATES, FAMILY AND FORMER AND CURRENT EMPLOYERS NOR ANY OTHER PARTY INVOLVED IN CREATING, PRODUCING, OR DELIVERING E-BIKE LOVERS GUIDES, OUR MEETUP EVENTS, AND THE GPS E-TRAILS IS LIABLE FOR ANY DIRECT, INCIDENTAL, CONSEQUENTIAL, INDIRECT, EXEMPLARY, OR PUNITIVE DAMAGES ARISING OUT OF A USER’S ACCESS TO, OR USE OF THE E-BIKE LOVERS GUIDES, OUR MEETUP EVENTS, AND THE GPS E-TRAILS.** **See for the full disclaimer: https://ebikelovers.com/disclaimer**

As a reminder, since Freedom Plaza is under construction, we will meet at the plaza in front of The International Trade Center near the National Children's Museum (on Pennsylvania Ave). We'll begin with going over a few drills (varies week to week). The skills we drill will be for the first 30 minutes. For the second half, we will casually skate down the bike lanes on Pennsylvania Avenue from the plaza to the U.S.Capitol and stop at 3rd St. and then skate back the same route. This route is about 2 miles in total and is perfect for those who are new to skating in the city but feel comfortable on skates in a parking lot or roller rink. This is also great if you wish to start with shorter routes to increase your physical fitness or stamina for some of the other routes. This is an excellent opportunity to prepare to skate with others on the road. You will also get to meet skaters who will arrive for the Intermediate and Advanced skate routes following the introductory skate. This is great training to feel prepared for the Tuesday Night and Friday Night Skate! Route: [http://www.gmap-pedometer.com/?r=7653831](http://www.gmap-pedometer.com/?r=7653831) Inline skates (rollerblades), roller skates (quads), bicycles, unicycles, skateboards, longboards and other similar modes of transportation are welcome to join. Helmet and pads are required. Skate at your own risk. Children under 18 must be accompanied by an adult for the duration of the session

Join us as The Washington Area Roadskaters lead you on a different adventure every week, skating through and around our Nation's Capital! Skate description will be placed here as the route is published. For up to the minute details, check Facebook and Instagram. Facebook: https://www.facebook.com/groups/WashingtonAreaRoadskaters/events Instagram: https://www.instagram.com/weareskatedc/ We hope to see you Sunday!

Join our ASL Brunch on Sundays in Greenbelt! All ASL users and learners are welcome. Brunches are alternately held at two restaurants in Greenbelt, both in the same town plaza. ODD WEEKS: 1st, 3rd, and 5th Sundays, we meet at Cedars of Lebanon, 103 Centerway. EVEN WEEKS: 2nd and 4th Sundays, we meet at New Deal Café,113 Centerway. We are the Greenbelt ASL Community, a group of both Deaf and hearing people who hang out, chat about everyday goings on, trade stories, get to know each other better, and of course, enjoy food together. Many members use ASL as their primary language, several are interpreters or other fluent ASL users, while others are ASL learners who wish to improve their skills while making new friends. Before or after brunch, you can visit the farmer's market and small coop grocery store in the plaza. Please RSVP so we can contact you via email if needed. Our group is on Facebook as Greenbelt ASL Community. Some long-time group members don't mark their attendance here, so feel free to stop by even if you don't see others who have RSVP'd on Meet-up.

**Total Eclipse of the Chart: School Redistricting Dashboards** In this presentation, we will explore the utilization of maps, sets, and SQL within a Tableau dashboard to help provide “what-if” analyses generated through the use of a mapped dashboard, providing different scenarios and the potential implications of these. While in this use case we are focused on a large school district, the concepts of utilizing existing data to explore the future impacts of modifying different geographic boundaries can be useful to many industries, balancing the mix of maps with visual analytics. **About Our Speaker** Robert Kramer is the Data Systems and State Reporting Coordinator at South Western City Schools in Grove City. He has worked there for 17 years, serving previously in the roles of Data Analyst, Programmer, and Operations Coordinator. Prior to working at South Western, he worked as a Systems Engineer at Pinnacle Data Systems in Groveport. He graduated in 2005 from The University of Toledo with his Bachelor’s in Computer Science and Engineering, and a minor in Mathematics. Robert resides in Obetz with his wife, and their 15 and 12 year-old daughters. He was also just elected to his 3rd four-year term on the Obetz City Council. Thanks to our 2026 sponsors: [Clarivoy](https://www.clarivoy.com), [What Box Consulting Group](https://www.whatboxconsultinggroup.com), [Conductrics](https://www.conductrics.com), and [Piwik PRO](https://piwik.pro) More info at [cbusdaw.com](https://cbusdaw.com)

Customer identity resolution becomes increasingly complex as organizations scale across multiple systems, regions, and data formats. Traditional rule-based approaches often fail to keep up with data variability, require constant manual tuning, and struggle with real-time processing needs. This session presents a practical approach to building a scalable identity resolution pipeline using AWS services and modern AI techniques. The architecture combines data ingestion through Amazon S3 and AWS Glue, transformation pipelines using Spark on EMR, and machine learning models deployed via SageMaker for entity matching and standardization. Graph-based relationship modeling is implemented using Amazon Neptune to improve resolution accuracy by incorporating household and shared attribute context. We will walk through how machine learning models can be used for name and address normalization, how intelligent blocking strategies improve matching efficiency, and how feedback loops can be introduced to continuously improve accuracy. The session also highlights how serverless components such as AWS Lambda can be used for orchestration and real-time processing. **SPEAKER BIO** Mosaic Syed is a Senior Data Engineering and Cloud Solutions Architect with over 20 years of experience designing and delivering scalable, secure, and high-performance data solutions across global enterprise environments. https://www.linkedin.com/in/mosaic-basha-syed-92300856 **CALL FOR SPEAKERS** Learn more: [https://www.awscolumbus.com/get-involved/](https://www.awscolumbus.com/get-involved/) **THANK YOU** *VEEAM* for hosting our meetup! To learn more about *Veeam*, please visit their website: [https://www.veeam.com/](https://www.veeam.com/) **DIRECTIONS** 8800 Lyra Dr #450 · Columbus, OH go to 4th floor. **Want to sponsor the pizza and/or bar tab?** Please contact me if you would like to sponsor this meetup's pizza and/or bar tab: angelo@mandato.com

Practical AI for Power BI Developers A year ago, “agentic AI” was mostly hype for Power BI teams. Today, it deserves your undivided attention. For Power BI pros, there is now a real opportunity to reduce repetitive development work, accelerate delivery, and help developers do more, but only when strong DataOps practices are in place to make AI workflows effective. This session is a no-nonsense introduction to effective AI patterns for Power BI and Fabric development. Along the way, we will make sense of the growing pile of terminology, including skills, plugins, hooks, and MCP. You will see examples of how modern AI tooling can help with development tasks across Power BI and Fabric, along with the prerequisites, guardrails, and DataOps principles needed to use it responsibly. Whether you're burned out on AI hype or already using Copilot CLI daily, this session will show you the foundations that are finally making AI-assisted development genuinely useful.

Join the Columbus AI community for our quarterly gathering — a casual, community-focused evening where everyone has a chance to share, learn, and connect. These open mic–style events give anyone in the community up to **5 minutes** to present a project, share a tool, pose a question, or offer a perspective on the evolving AI space. No slides required — just a welcoming space to exchange ideas and keep the local AI conversation moving. If you’d like to take the stage, message \*\*Chris (the organizer)\*\*with a **title and short description** of what you’d like to share. Whether you’re deep in the field or just getting curious, come connect with others building and exploring AI in Columbus. Sponsored by [Transform Labs](https://www.linkedin.com/company/transformlabs/) Sign up also accessible via [Transform Labs Luma](https://luma.com/transformlabshq)

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: This month John Lairson will share a notebook describing the Alpaca (Paper) Trading API and discuss different algorithms for evaluating stock trades. We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com

We will show how to build custom agents with Microsoft Agent Framework. Attendees will learn how to build and custom host agents when Microsoft Foundry is not a viable option.

**History** The history of [Blendon Woods Metro Park](https://www.metroparks.net/parks-and-trails/blendon-woods/) began long before its 1951 opening, rooted in a landscape of rugged ridges and deep ravines that made the land unsuitable for traditional farming. In 1945, a report proposing a metropolitan park system for Franklin County specifically highlighted these cliffs of Bedford Shale as some of the "wildest land in the vicinity". Following this recommendation, the recently formed park district purchased the first 229 acres in early 1949. Because the terrain was so uneven, developers had to cut a mile-and-a-half-long roadway through dense woods just to bring in heavy equipment. This initial preservation effort ensured that the mature second-growth hardwood forests remained largely untouched by the urban expansion spreading toward Westerville. Opening day arrived on Labor Day, September 3, 1951, marking Blendon Woods as the second park in the Columbus and Franklin County Metro Parks system. The final push to open was a frantic race; the State Highway Department only finished the primary gravel access road four days before the gates opened. Early staff members, consisting of just four full-time employees, had to hand-dig pit toilets and learn construction skills on the fly to build the first picnic shelters. Despite the dusty conditions and limited facilities, the park was an immediate success, drawing massive crowds from across Central Ohio. By the end of the 1950s, annual visitation had already climbed to over 190,000 people. As the surrounding suburbs grew in the 1960s, the park faced severe overcrowding that threatened its natural habitats. In response, Franklin County voters passed the first Metro Parks levy in 1960, providing the funds necessary for a decade of steady expansion. During this era, the park nearly doubled in size, growing from 264 acres to over 570 acres by 1968. Planners also addressed a critical water shortage by collaborating with the U.S. Soil and Conservation Service to build a lake in 1964. This body of water originally served as a temporary reservoir before its role shifted toward conservation and wildlife support. The 1970s marked a transition toward the specialized wildlife and educational focus for which the park is known today. In 1971, the Walden Waterfowl Refuge was established around the 11-acre Thoreau Lake, creating a sanctuary that remains restricted to provide a quiet habitat for migratory birds. A formal nature center was also developed during this period, expanding on the guided Sunday walks that had been a park staple since the early 1950s. The park’s famous "Monarch Mansion" also became a prominent fixture, starting a long tradition of raising and releasing thousands of monarch butterflies each September. These initiatives cemented the park’s reputation as a premier destination for birders and nature enthusiasts. In more recent decades, Blendon Woods has continued to modernize while maintaining its wilderness character. The 10-acre Natural Play Area was added in 2017, encouraging kids to explore the ravines and woods off-trail. This was followed by the opening of a $1.5 million inclusive playground in April 2025, designed to accommodate children of all physical abilities. The nature center also underwent major renovations to include immersive, three-dimensional exhibits and a new butterfly house. Today, the park encompasses 653 acres, preserving a unique geologic and biological corridor amidst the bustling Westerville and Northeast Columbus area. **Map of the Park** Here is a map of [Blendon Woods](https://www.metroparks.net/wp-content/uploads/2025/05/BLN_map_Inclusive-Playground-and-Butterfly-Trail_May-2025_1980px.png). **Summary** For this event, we will hike the Lake View, Hickory Ridge, Ripple Rock, Overlook, Brookside, and Sugarbush Trails. This sounds like a lot, but it will really be only a little over five miles. Blendon Woods has a few hills here and there, but it's not one of the more strenuous metro parks. **Where We'll Meet** We'll meet just in front of the Nature Center. This is about a mile into the park from the main entrance. You have to go past the Ranger Station and the Shadblow Reservable Area to get to it, so don't stop too early at the Ranger Station and get it confused with the Nature Center. **After the Hike** Afterward, we will head over to [Forbidden Root Restaurant & Brewery](https://forbiddenroot.com/restaurants/columbus-ohio/) at Easton for [drinks](https://forbiddenroot.com/restaurants/columbus-ohio/#dinner-menu) and [food](https://forbiddenroot.com/wp-content/uploads/Cbus-Food.pdf). We should be there by 5 if you can't make the hike and just want to join us for drinks. The brewery's actual address is [4080 Worth Ave, Columbus, OH 43219](https://www.google.com/maps/place/4080+Worth+Ave,+Columbus,+OH+43219/data=!4m2!3m1!1s0x88388a86d10b6619:0x4d42b470a5cf11d3?sa=X&ved=1t:242&ictx=111); however, I recommend pointing your GPS to the [Worth Garage](https://www.google.com/maps/place/Worth+Garage/@40.0542293,-82.9137962,17z/data=!3m1!4b1!4m6!3m5!1s0x88388b4df6082825:0x17582f0eccd9dda1!8m2!3d40.0542293!4d-82.9137962!16s%2Fg%2F11rzfvvv8b?entry=ttu&g_ep=EgoyMDI2MDQxNS4wIKXMDSoASAFQAw%3D%3D) across the street. Parking in this garage is free as long as you're not on the first floor, and it is literally right next to the brewery.