# UMass Lowell Family Weekend, October 23 to 25, 2026: three buildings and three more walls to photograph on the three campuses and in downtown Lowell > UMass Lowell Family Weekend, October 23 to 25, 2026: three walls in downtown Lowell that line up with the low evening sun, three campus walls the low sun reaches square, when to be there between the weekend's events, and where to stand for the family picture. This is the Markdown form of https://hengedays.com/articles/buildings-to-photograph-umass-lowell-family-weekend-2026, with the same words as the page. Part of [Family Weekends 2026](https://hengedays.com/articles/family-weekends-2026), school 10 of 26. Previous school: [Northeastern University](https://hengedays.com/articles/buildings-to-photograph-northeastern-family-weekend-2026). Next school: [University of Rhode Island](https://hengedays.com/articles/buildings-to-photograph-uri-family-weekend-2026). *Appleton Mills on Jackson Street in Henge Days, entry 2 in the list. Pink marks the west-southwest walls that the evening sun lines up with on the Sunday of Family Weekend. North is up.* For October 23 to 25, 2026. Family Weekend at UMass Lowell, the University of Massachusetts Lowell, runs from Friday, October 23, to Sunday, October 25, 2026. This guide lists three walls in downtown Lowell that the low evening sun lands on square this weekend, three campus walls it reaches a little higher, the times fitted around the weekend's schedule, and a spot for the family picture. Post yours with #HengeDays. In this article - [The weekend's schedule and the light](#the-weekend-s-schedule-and-the-light) - [Part 1: the UMass Lowell campuses](#part-1-the-umass-lowell-campuses) - [Part 2: downtown Lowell](#part-2-downtown-lowell) - [When the landmarks line up](#when-the-landmarks-line-up) - [How the list was made](#how-the-list-was-made) - [How to read each entry](#how-to-read-each-entry) For a level horizon, the sun rises in Lowell at 7:08 to 7:10 AM and sets at 5:50 to 5:47 PM, Friday to Sunday. All three entries are evening walls with golden light, the sun 2 to 6 degrees up at their moment. Every time in this guide is Eastern Daylight Time. ### The weekend's schedule and the light The events below are the ones UMass Lowell's Family Weekend pages, the [registration page](https://uml.campusesp.com/events/familyweekend2026) and [uml.edu/family](https://www.uml.edu/family/familyweekend.aspx), and the university's ticket pages listed in search results on October 17, 2026. The university's own pages could not be opened from where this guide was written, so the list comes from those search summaries, and they do not give the full schedule. The hockey time is from the [River Hawks schedule](https://goriverhawks.com/sports/mens-ice-hockey/schedule/text). Check times and places on the Family Weekend pages before you plan around them. The weekend runs from 8:00 AM Friday to 4:00 PM Sunday. - Friday, October 23, 8:30 AM to 4:00 PM: the River Hawk Shop on the first floor of the Meehan Student Center, the former University Crossing. No wall lines up with the sunrise this weekend with a clear view. The low morning sun is square to the east side of the Costello Athletic Center on North Campus at 8:40 AM, 14.8 degrees up (Part 1). - Friday, October 23, 1:00 to 3:00 PM: Family Weekend Farmers Market and Food Tasting, and 1:00 to 5:00 PM: Family Weekend Headquarters, both on the first floor of the Meehan Student Center. - Friday, October 23, 6:30 to 7:15 PM: pre-game social in the Club Rooms of the Tsongas Center, then UMass Lowell plays Providence in hockey at 7:15 PM. Both are ticketed and listed as sold out. Before them, the Lowell Memorial Auditorium at 5:20 PM (entry 1), about 1 km from the Tsongas Center, or the Health and Social Sciences Building on South Campus at 5:05 PM (Part 1). - Saturday, October 24, 8:00 AM to 10:00 PM: the Campus Recreation Center is open to family members 18 and older who come with their student. The guest fee is waived. - Saturday, October 24, 9:00 AM to 4:00 PM: the Boott Cotton Mills Museum, with no registration. After it, the Lowell Memorial Auditorium is about 360 m south-southeast and lines up at 5:22 PM, the family photo spot below. - Saturday, October 24, 10:00 AM to 4:00 PM: Family Weekend Headquarters in the Meehan Student Center. - Saturday, October 24, noon to 1:30 PM: Honors Family Connection Lunch at University Suites, a ticketed event. - Saturday, October 24, 7:00 PM: Witch's Woods at Nashoba Valley Ski Area in Westford, with discounted tickets. Before you drive out, the auditorium at 5:22 PM or the Health and Social Sciences Building at 5:06 PM. - Sunday, October 25, noon to 2:00 PM: Drag Brunch and Bingo in Room 260 of the Meehan Student Center, ticketed and listed as sold out. The ticket page gives noon to 1:30 PM. - Sunday, October 25: the Campus Recreation Center from 8:00 AM to 10:00 PM and the Boott Cotton Mills Museum from 9:00 AM to 4:00 PM. Family Weekend ends at 4:00 PM. Appleton Mills (entry 2) lines up at 5:09 PM and the UMass Lowell Innovation Hub (entry 3) at 5:10 PM, their one golden day this weekend. The auditorium follows at 5:23 PM, about 800 m east of Appleton Mills. - The Taste the Acre Food Tour is one of the weekend's ticketed events and is listed as sold out, with a waitlist through family@uml.edu. The search results give no time for it. ### Part 1: the UMass Lowell campuses No wall on North, South or East Campus lines up with the sun within 6 degrees of the horizon this weekend with a clear view. The section How the list was made gives the reasons. Three campus walls get the low sun square a little higher, with nothing in the outlines in front of their longest sections. Each name opens the building in Henge Days. The times are the moment the sun is square to the wall on Friday, Saturday and Sunday. - [Health and Social Sciences Building](https://hengedays.com/at/42.64219,-71.33375?q=Health+and+Social+Sciences+Building%2C+113+Wilder+Street%2C+Lowell%2C+MA&b=osm%2Fway%2F371247321), 113 Wilder Street on South Campus: the west-southwest wall, 30 m facing 247 degrees, at 5:05, 5:06 and 5:07 PM, 7.1, 6.6 and 6.2 degrees up. It gets golden light from Monday, October 26, to November 9, and the sun sets square to it at the horizon from November 5 to 9. - [Allen House](https://hengedays.com/at/42.64267,-71.33587?q=Allen+House%2C+Lowell%2C+MA&b=osm%2Fway%2F214338779), on South Campus west of the Health and Social Sciences Building: the west-southwest wall, 39 m in several sections facing 246 degrees, at 5:00, 5:01 and 5:03 PM, 7.9, 7.4 and 7.0 degrees up. The longest section is 13 m. One 6 m section faces Sheehy Hall, and the rest have nothing in the outlines in front of them. Golden light from October 27 to November 11, and the sun sets square to it at the horizon from November 7 to 11. - [Costello Athletic Center](https://hengedays.com/at/42.65553,-71.32413?q=Costello+Athletic+Center%2C+Lowell%2C+MA&b=osm%2Fway%2F107273947), on North Campus: the east-southeast wall, 48 m facing 122 degrees, at 8:40, 8:39 and 8:38 AM, 14.8, 14.4 and 13.9 degrees up. Its longest section is 36 m. Golden morning light from November 14 to December 13, 2026, and again from December 30, 2026, to January 27, 2027. ### Part 2: downtown Lowell Downtown Lowell begins at City Hall, about 1 km east of the Meehan Student Center along Merrimack Street. Merrimack Street and Central Street hold most of the shops and restaurants. The Boott Cotton Mills Museum of Lowell National Historical Park and the canal walks are north of Merrimack Street. Between Saturday's lunch and the evening, or after Sunday's brunch, the museum and the walk along the canals fill the afternoon. The three walls below are the Lowell Memorial Auditorium on East Merrimack Street and two mill buildings in the Hamilton Canal District, west of Central Street. #### 1 Lowell Memorial Auditorium Lowell, Massachusetts Wall west-southwest, facing 250° Sun The low evening sun lines up with this wall on Oct 23 to 25. Best: Sunday, October 25 at 5:23 PM, 3.6° above the horizon. Leaves A forecast issued September 25 put peak color in most of Massachusetts around October 14, moving across the state over about 17 days ([More Than Just Parks](https://morethanjustparks.com/foliage-tracker/massachusetts)). The state's map expected the peak in mid-October ([Massachusetts DCR](https://www.mass.gov/news/dcr-unveils-2026-interactive-fall-foliage-map)). Where to stand The wall is the building's west side, 31 m in two sections, facing the Concord River. Stand on the walks west of the auditorium, between the building and the river, west-southwest of the wall, with the sun behind you. Stay out of the drives. The sun lines up with the wall at 5:20 PM on Friday, 5:22 PM on Saturday and 5:23 PM on Sunday, 4.5, 4.0 and 3.6 degrees up. These are golden days: at the head-on moment the sun is 2 to 6 degrees up. The southern section, 11 m, has nothing in the outlines in front of it. In front of the northern section, 20 m, the Cowan Center rises 2.9 degrees in the outlines, under the sun on all three days. Its height is an estimate. Computed from the building outline and the sun's position for a level horizon, and not checked on the ground. Clear view Clear. No building in the map data rises above the sun (3.6° up) in its direction. The city's memorial to those who served in the First World War, on East Merrimack Street beside the Concord River. A Lowell Board of Trade resolution of December 10, 1918, called for it, and it was dedicated on September 21, 1922. It seats about 2,800. Its entry hall, the Hall of Flags, holds memorials that list battles from the Revolutionary War to the Persian Gulf wars ([Wikipedia](https://en.wikipedia.org/wiki/Lowell_Memorial_Auditorium), [Lowell Memorial Auditorium](https://lowellauditorium.com/history/)). The nearest parking is a small lot on Davidson Street, across East Merrimack Street, and a garage at 90 Warren Street, a short walk across a footbridge ([Lowell Memorial Auditorium](https://lowellauditorium.com/?p=97088)). The Boott Cotton Mills Museum is about 360 m north-northwest. *The building page in Henge Days. The highlighted walls face 250°, toward the sunset on the days in the row below; every wall carries its bearing.* - **Tue, Oct 20 to Mon, Nov 2, 2026**14 evenings · best Mon, Nov 2 **4:33 PM** Golden sunset, sun 0° up WSW 250° wall Its row in the Henge days list, with the time of the head-on moment on the best day. Save keeps that day in your planner, which can send it to your calendar app. Saving asks you to sign in with an email link; there is no password. *The year for every wall of the building. Each row is a wall; the colored runs are its henge, golden and low-sun days.* [Open this wall in Henge Days](https://hengedays.com/at/42.64510,-71.30413?q=Lowell+Memorial+Auditorium%2C+50+East+Merrimack+Street%2C+Lowell%2C+MA&b=osm%2Fway%2F98060698&facade=0&d=2026-10-20) Family photo spot. Stand the family on the walk a few steps out from the southern section of the Lowell Memorial Auditorium's west wall, turned partway toward the camera. The photographer stands west-southwest of them, with the sun low behind and to one side, which lights faces and the wall behind them in the same warm light. Go on Saturday at 5:22 PM, after the Boott Cotton Mills Museum closes at 4:00 PM, or on Friday at 5:20 PM, an hour before the pre-game social at the Tsongas Center. Post it with #HengeDays. Computed from the building outline and the sun's position for a level horizon, and not checked on the ground. #### 2 Appleton Mills Lowell, Massachusetts Wall west-southwest, facing 247° Sun The low evening sun lines up with this wall on Oct 25. Best: Sunday, October 25 at 5:09 PM, 5.9° above the horizon. Leaves A forecast issued September 25 put peak color in most of Massachusetts around October 14, moving across the state over about 17 days ([More Than Just Parks](https://morethanjustparks.com/foliage-tracker/massachusetts)). The state's map expected the peak in mid-October ([Massachusetts DCR](https://www.mass.gov/news/dcr-unveils-2026-interactive-fall-foliage-map)). Where to stand The wall is the west end of the building, 38 m, facing Canal Street. Stand on the Canal Street sidewalk, west-southwest of the wall, with the sun behind you. Stay out of the street. On Sunday the sun lines up with the wall at 5:09 PM, 5.9 degrees up, golden light. On Friday at 5:07 PM and Saturday at 5:08 PM it is square to the wall a little higher, 6.8 and 6.4 degrees up. Western Avenue Studios, 448 m away, rises 0.9 degrees in the outlines, under the sun. Its height is an estimate. The days go on to November 8, with the sun at the horizon from November 4 to 8. The UMass Lowell Innovation Hub (entry 3), about 130 m west, lines up a minute later, so choose one. Computed from the building outline and the sun's position for a level horizon, and not checked on the ground. Clear view Clear. No building in the map data rises above the sun (5.9° up) in its direction. Mill buildings of the Appleton Manufacturing Company on Jackson Street, between the Lower Pawtucket Canal and the Hamilton Canal. Trinity Financial turned them into 130 live and work apartments for artists, the first phase of its redevelopment of the Hamilton Canal District, which opened in 2011 ([Tax Credit Advisor](https://www.taxcreditadvisor.com/articles/leveraging-on-history-former-textile-mill-in-lowell-being-rehabilitated-into-artist-housing), [Trinity Financial](https://www.trinityfinancial.com/blogpost/celebrating-innovation-lowell/)). It is a residential building, so photograph it from the street. *The building page in Henge Days. The highlighted walls face 247°, toward the sunset on the days in the row below; every wall carries its bearing.* - **Sun, Oct 25 to Sun, Nov 8, 2026**15 evenings · best Sun, Nov 8 **4:27 PM** Golden sunset, sun 0° up WSW 247° wall Its row in the Henge days list, with the time of the head-on moment on the best day. Save keeps that day in your planner, which can send it to your calendar app. Saving asks you to sign in with an email link; there is no password. *The year for every wall of the building. Each row is a wall; the colored runs are its henge, golden and low-sun days.* [Open this wall in Henge Days](https://hengedays.com/at/42.64186,-71.31266?q=219+Jackson+Street%2C+Lowell%2C+MA&b=osm%2Fway%2F1149623006&facade=2&d=2026-10-25) #### 3 UMass Lowell Innovation Hub Lowell, Massachusetts Wall west-southwest, facing 247° Sun The low evening sun lines up with this wall on Oct 25. Best: Sunday, October 25 at 5:10 PM, 5.8° above the horizon. Leaves A forecast issued September 25 put peak color in most of Massachusetts around October 14, moving across the state over about 17 days ([More Than Just Parks](https://morethanjustparks.com/foliage-tracker/massachusetts)). The state's map expected the peak in mid-October ([Massachusetts DCR](https://www.mass.gov/news/dcr-unveils-2026-interactive-fall-foliage-map)). Where to stand The wall is the building's west end, 25 m, facing Swamp Locks. Stand on the walk or sidewalk west of the building, west-southwest of the wall, with the sun behind you. Stay out of the street. On Sunday the sun lines up with the wall at 5:10 PM, 5.8 degrees up, golden light. On Friday at 5:07 PM and Saturday at 5:08 PM it is square to the wall a little higher, 6.7 and 6.3 degrees up. A building 336 m away rises 1.3 degrees in the outlines, under the sun. Its height is an estimate. Computed from the building outline and the sun's position for a level horizon, and not checked on the ground. Clear view Clear. No building in the map data rises above the sun (5.8° up) in its direction. UMass Lowell's space for startups, in a five-story former mill building at 110 Canal Street. Governor Deval Patrick announced the site in April 2014, and the university opened its two floors on October 6, 2015, with M2D2, the Massachusetts Medical Device Development Center, on the floor above ([UMass Lowell](https://uml.edu/news/press-releases/2014/innovationhub.aspx), [UMass Lowell](https://uml.edu/news/stories/2015/110-canal-opening.aspx)). It is the one UMass Lowell building in this list. *The building page in Henge Days. The highlighted walls face 247°, toward the sunset on the days in the row below; every wall carries its bearing.* - **Sun, Oct 25 to Sun, Nov 8, 2026**15 evenings · best Sun, Nov 8 **4:28 PM** Golden sunset, sun 0° up WSW 247° wall Its row in the Henge days list, with the time of the head-on moment on the best day. Save keeps that day in your planner, which can send it to your calendar app. Saving asks you to sign in with an email link; there is no password. *The year for every wall of the building. Each row is a wall; the colored runs are its henge, golden and low-sun days.* [Open this wall in Henge Days](https://hengedays.com/at/42.64197,-71.31418?q=UMass+Lowell+Innovation+Hub%2C+110+Canal+Street%2C+Lowell%2C+MA&b=osm%2Fway%2F98670091&facade=0&d=2026-10-25) ### When the landmarks line up The buildings a family asks about first do not face this weekend's low sun with a clear view. Their next days, from the same engine. These dates do not include the check for other buildings. - [Tsongas Center](https://hengedays.com/at/42.65029,-71.31318?q=Tsongas+Center%2C+300+Martin+Luther+King+Jr+Way%2C+Lowell%2C+MA&b=osm%2Fway%2F34088795): the east-southeast wall, 82 m facing 123 degrees, gets golden morning light from November 19, 2026, to January 22, 2027, with the sun at the horizon from December 11 to 31. - [Meehan Student Center](https://hengedays.com/at/42.65013,-71.32390?q=University+Crossing%2C+220+Pawtucket+Street%2C+Lowell%2C+MA&b=osm%2Fway%2F477047747), listed in OpenStreetMap as University Crossing: the east-southeast wall, 67 m facing 122 degrees, gets golden morning light from November 15 to December 18, 2026, with the sun at the horizon from December 2 to 18. - [Olney Hall](https://hengedays.com/at/42.65543,-71.32538?q=Olney+Hall%2C+265+Riverside+Street%2C+Lowell%2C+MA&b=osm%2Fway%2F34098642), on North Campus: the east-southeast wall, 114 m facing 109 degrees, gets golden morning light from October 23 to 31, with the sun at the horizon from October 28 to 31. The ground in front of it is a construction site this fall. - [Boott Cotton Mills](https://hengedays.com/at/42.64797,-71.30729?q=Boott+Cotton+Mills%2C+115+John+Street%2C+Lowell%2C+MA&b=osm%2Frelation%2F3585804): the east-southeast walls, 191 m facing 122 degrees, get golden morning light from November 16, 2026, to January 25, 2027, with the sun at the horizon from December 5, 2026, to January 7, 2027. - [Lowell City Hall](https://hengedays.com/at/42.64640,-71.31415?q=Lowell+City+Hall%2C+375+Merrimack+Street%2C+Lowell%2C+MA&b=osm%2Fway%2F127798987), 375 Merrimack Street: the east-southeast wall, 50 m facing 124 degrees, gets golden morning light from November 20, 2026, to January 21, 2027, with the sun at the horizon from December 14 to 29. - [Coburn Hall](https://hengedays.com/at/42.64121,-71.33384?q=Coburn+Hall%2C+850+Broadway+Street%2C+Lowell%2C+MA&b=osm%2Fway%2F138068111), on South Campus: the west-southwest wall, 35 m facing 253 degrees, lines up with the sunset this weekend, but Mahoney Hall stands in front of it at that moment. It lines up again from February 12 to 24, 2027. ### How the list was made Henge Days computed every named building within 300 to 450 meters of 14 points: three on North Campus, the Meehan Student Center, East Campus, the Tsongas Center, two on South Campus, the Pawtucket Canal, Merrimack Street, the Boott Cotton Mills, the Lowell Memorial Auditorium, Central Street and Middlesex Street. It used OpenStreetMap outlines. It kept walls where the sun lines up with the wall within 6 degrees of the horizon on at least one day from Friday, October 23, to Sunday, October 25. It then traced the sun's path from each section of each wall, against every outline from all 14 points and against the wall's own building, and dropped the walls where a building stands higher than the sun. Three days is a short window. This weekend the sun rises at 105 to 106 degrees and sets at 254 to 255. About 25 walls of named buildings line up within 6 degrees of the horizon, and most have a neighbor in the way at that moment. On South Campus, Mahoney Hall stands in front of Coburn Hall, and the South Parking Garage in front of Mahoney Hall. On East Campus, the Campus Recreation Center stands in front of Fox Hall. In the Hamilton Canal District, Appleton Mills stands in front of Counting House Lofts, and the Picker and Power House in front of the Worsted Mill. Four more walls pass the check on the outlines and are left out. The west-southwest wall of Durgin Hall, the Moloney Performing Arts Center since 2024 ([UMass Lowell](https://www.uml.edu/news/stories/2024/moloney-performing-arts-center.aspx)), sits in a corner and faces its own west wing 14 m away. Olney Hall's east side lines up at 7:31, 7:29 and 7:28 AM, but the ground between Olney, Pinanski Hall and the Costello Athletic Center is fenced for the new science wing, due to open for the fall 2027 semester ([UMass Lowell](https://www.uml.edu/news/stories/2025/olney-expansion-begins.aspx), [UMass Lowell](https://www.uml.edu/news/stories/2026/summer-facilities-work.aspx)). The Tsongas Center's short west wall faces Wannalancit Mills, which the check assumed at three stories. UMass Lowell describes the mill as five stories ([UMass Lowell](https://www.uml.edu/research/otc/contact/directions.aspx)). The east wall of the F. Bradford Morse Federal Building faces the Lowell Memorial Auditorium, also assumed at three stories, a hall that seats about 2,800. That leaves three entries, all downtown and all evening walls, and the list stops there. Hills and trees are not part of that check, and the times assume a level horizon. Trees along the canals and the Concord River can shade a wall in the last minutes. Where a neighboring outline carries no height, the check assumed about three stories, and each entry says so. Every date and time comes from the Henge Days engine for the wall's own bearing, in Eastern Daylight Time, or Eastern Standard Time from November 1. ### How to read each entry Each entry shows the building as Henge Days shows it. The map marks the building's outline from OpenStreetMap, gives every wall its compass bearing, and highlights the wall that lines up with the sun. Below it are the wall's row from the building's Henge days list, with a Save button that keeps the best day in your planner, and a year of head-on days for every wall. The Clear view line is the result of the check for other buildings on the best day. Any building has a page like the ones above, your student's hall included. Whatever you shoot, post it with #HengeDays: [Look up a building](https://hengedays.com/) [Open your planner](https://hengedays.com/planner) ### Sources - [UMass Lowell: Family Weekend 2026 registration, October 23 to 25](https://uml.campusesp.com/events/familyweekend2026) - [UMass Lowell Family Programs: Family Weekend](https://www.uml.edu/family/familyweekend.aspx) - [UMass Lowell eStore: UML Hockey Game with Pre-Game Social](https://uml.estore.flywire.com/familyweekendhockey2026) - [UMass Lowell eStore: Honors Family Connection Lunch](https://uml.estore.flywire.com/honorslunch2026) - [UMass Lowell eStore: Drag Brunch and Bingo](https://uml.estore.flywire.com/dragbrunchbingo2026) - [UMass Lowell eStore: Witch's Woods](https://uml.estore.flywire.com/witchswoods2026) - [UMass Lowell Athletics: 2026–27 men's ice hockey schedule](https://goriverhawks.com/sports/mens-ice-hockey/schedule/text) - [Wikipedia: Lowell Memorial Auditorium](https://en.wikipedia.org/wiki/Lowell_Memorial_Auditorium) - [Lowell Memorial Auditorium: history](https://lowellauditorium.com/history/) - [Lowell Memorial Auditorium: directions and parking](https://lowellauditorium.com/?p=97088) - [Tax Credit Advisor: former textile mill in Lowell rehabilitated into artist housing](https://www.taxcreditadvisor.com/articles/leveraging-on-history-former-textile-mill-in-lowell-being-rehabilitated-into-artist-housing) - [Trinity Financial: celebrating innovation in Lowell](https://www.trinityfinancial.com/blogpost/celebrating-innovation-lowell/) - [UMass Lowell: 110 Canal Street selected as Innovation Hub site, 2014](https://uml.edu/news/press-releases/2014/innovationhub.aspx) - [UMass Lowell: Innovation Hub opening, October 2015](https://uml.edu/news/stories/2015/110-canal-opening.aspx) - [UMass Lowell: Durgin Hall becomes the Moloney Performing Arts Center, 2024](https://www.uml.edu/news/stories/2024/moloney-performing-arts-center.aspx) - [UMass Lowell: Olney expansion begins, 2025](https://www.uml.edu/news/stories/2025/olney-expansion-begins.aspx) - [UMass Lowell: summer facilities work, 2026](https://www.uml.edu/news/stories/2026/summer-facilities-work.aspx) - [UMass Lowell: directions to Wannalancit Mills](https://www.uml.edu/research/otc/contact/directions.aspx) - [More Than Just Parks foliage forecast: Massachusetts](https://morethanjustparks.com/foliage-tracker/massachusetts) - [Massachusetts DCR: 2026 interactive fall foliage map](https://www.mass.gov/news/dcr-unveils-2026-interactive-fall-foliage-map) - [Building outlines: OpenStreetMap contributors](https://www.openstreetmap.org/copyright) ### The newsletter Henge Days also has a newsletter. It covers what each release of the site adds and how to use it, and the buildings the #HengeDays community photographs in head-on light. [Read it on Substack](https://hengedays.substack.com/). The address goes to Substack, which sends the email and asks you to confirm. Henge Days does not keep it. --- Every date and time on Henge Days is computed from a building outline in OpenStreetMap and the position of the sun. Nobody has checked it on the ground. Hills, trees and other buildings can block a low sun. Treat each date as a plan to confirm before you travel. See https://hengedays.com/terms.md. Henge Days is free to use; sign in only to save days to a planner. Contact: hello@hengedays.com.