BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Stellarhound//city-ics-v1//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Stellarhound — Massacre Rim Wilderness Study Area dark-sky n
 ights
X-WR-CALDESC:Nights when the Moon leaves Massacre Rim Wilderness Study Area
 's dark hours essentially moon-free (moon interference ≤ 15%\, the deep-
 sky standard used across stellarhound.com). Deterministic moon & darkness 
 geometry via Skyfield + JPL DE440s (city-ics-v1). Cloud cover is not knowa
 ble this far ahead — check the live forecast at https://stellarhound.com
 /dark-sites/massacre-rim-wilderness-study-area?utm_source=calendar&utm_med
 ium=ics&utm_campaign=dark-site-windows&utm_content=massacre-rim-wilderness
 -study-area closer to each window.
REFRESH-INTERVAL;VALUE=DURATION:P1W
X-PUBLISHED-TTL:P1W
BEGIN:VEVENT
UID:dark-site-window-massacre-rim-wilderness-study-area-2026-08-07@stellarh
 ound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20260807
DTEND;VALUE=DATE:20260820
SUMMARY:Dark-sky window · 13 moon-free nights
DESCRIPTION:13 nights with essentially moon-free dark hours at Massacre Rim
  Wilderness Study Area (nightly moon interference ≤ 15% — Moon below t
 he horizon for nearly all of astronomical darkness\, or too thin to matter
 ).\n\nCloud is the one thing no calendar can promise. When a window gets c
 lose\, check the live per-night forecast: https://stellarhound.com/dark-si
 tes/massacre-rim-wilderness-study-area?utm_source=calendar&utm_medium=ics&
 utm_campaign=dark-site-windows&utm_content=massacre-rim-wilderness-study-a
 rea\n\nRule city-ics-v1 — deterministic moon/darkness geometry\, Skyfiel
 d + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/massacre-rim-wilderness-study-area?
 utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_cont
 ent=massacre-rim-wilderness-study-area
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-massacre-rim-wilderness-study-area-2026-09-05@stellarh
 ound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20260905
DTEND;VALUE=DATE:20260918
SUMMARY:Dark-sky window · 13 moon-free nights
DESCRIPTION:13 nights with essentially moon-free dark hours at Massacre Rim
  Wilderness Study Area (nightly moon interference ≤ 15% — Moon below t
 he horizon for nearly all of astronomical darkness\, or too thin to matter
 ).\n\nCloud is the one thing no calendar can promise. When a window gets c
 lose\, check the live per-night forecast: https://stellarhound.com/dark-si
 tes/massacre-rim-wilderness-study-area?utm_source=calendar&utm_medium=ics&
 utm_campaign=dark-site-windows&utm_content=massacre-rim-wilderness-study-a
 rea\n\nRule city-ics-v1 — deterministic moon/darkness geometry\, Skyfiel
 d + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/massacre-rim-wilderness-study-area?
 utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_cont
 ent=massacre-rim-wilderness-study-area
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-massacre-rim-wilderness-study-area-2026-10-04@stellarh
 ound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20261004
DTEND;VALUE=DATE:20261017
SUMMARY:Dark-sky window · 13 moon-free nights
DESCRIPTION:13 nights with essentially moon-free dark hours at Massacre Rim
  Wilderness Study Area (nightly moon interference ≤ 15% — Moon below t
 he horizon for nearly all of astronomical darkness\, or too thin to matter
 ).\n\nCloud is the one thing no calendar can promise. When a window gets c
 lose\, check the live per-night forecast: https://stellarhound.com/dark-si
 tes/massacre-rim-wilderness-study-area?utm_source=calendar&utm_medium=ics&
 utm_campaign=dark-site-windows&utm_content=massacre-rim-wilderness-study-a
 rea\n\nRule city-ics-v1 — deterministic moon/darkness geometry\, Skyfiel
 d + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/massacre-rim-wilderness-study-area?
 utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_cont
 ent=massacre-rim-wilderness-study-area
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-massacre-rim-wilderness-study-area-2026-11-02@stellarh
 ound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20261102
DTEND;VALUE=DATE:20261116
SUMMARY:Dark-sky window · 14 moon-free nights
DESCRIPTION:14 nights with essentially moon-free dark hours at Massacre Rim
  Wilderness Study Area (nightly moon interference ≤ 15% — Moon below t
 he horizon for nearly all of astronomical darkness\, or too thin to matter
 ).\n\nCloud is the one thing no calendar can promise. When a window gets c
 lose\, check the live per-night forecast: https://stellarhound.com/dark-si
 tes/massacre-rim-wilderness-study-area?utm_source=calendar&utm_medium=ics&
 utm_campaign=dark-site-windows&utm_content=massacre-rim-wilderness-study-a
 rea\n\nRule city-ics-v1 — deterministic moon/darkness geometry\, Skyfiel
 d + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/massacre-rim-wilderness-study-area?
 utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_cont
 ent=massacre-rim-wilderness-study-area
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-massacre-rim-wilderness-study-area-2026-12-02@stellarh
 ound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20261202
DTEND;VALUE=DATE:20261215
SUMMARY:Dark-sky window · 13 moon-free nights
DESCRIPTION:13 nights with essentially moon-free dark hours at Massacre Rim
  Wilderness Study Area (nightly moon interference ≤ 15% — Moon below t
 he horizon for nearly all of astronomical darkness\, or too thin to matter
 ).\n\nCloud is the one thing no calendar can promise. When a window gets c
 lose\, check the live per-night forecast: https://stellarhound.com/dark-si
 tes/massacre-rim-wilderness-study-area?utm_source=calendar&utm_medium=ics&
 utm_campaign=dark-site-windows&utm_content=massacre-rim-wilderness-study-a
 rea\n\nRule city-ics-v1 — deterministic moon/darkness geometry\, Skyfiel
 d + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/massacre-rim-wilderness-study-area?
 utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_cont
 ent=massacre-rim-wilderness-study-area
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-massacre-rim-wilderness-study-area-2026-12-31@stellarh
 ound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20261231
DTEND;VALUE=DATE:20270114
SUMMARY:Dark-sky window · 14 moon-free nights
DESCRIPTION:14 nights with essentially moon-free dark hours at Massacre Rim
  Wilderness Study Area (nightly moon interference ≤ 15% — Moon below t
 he horizon for nearly all of astronomical darkness\, or too thin to matter
 ).\n\nCloud is the one thing no calendar can promise. When a window gets c
 lose\, check the live per-night forecast: https://stellarhound.com/dark-si
 tes/massacre-rim-wilderness-study-area?utm_source=calendar&utm_medium=ics&
 utm_campaign=dark-site-windows&utm_content=massacre-rim-wilderness-study-a
 rea\n\nRule city-ics-v1 — deterministic moon/darkness geometry\, Skyfiel
 d + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/massacre-rim-wilderness-study-area?
 utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_cont
 ent=massacre-rim-wilderness-study-area
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-massacre-rim-wilderness-study-area-2027-01-29@stellarh
 ound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20270129
DTEND;VALUE=DATE:20270212
SUMMARY:Dark-sky window · 14 moon-free nights
DESCRIPTION:14 nights with essentially moon-free dark hours at Massacre Rim
  Wilderness Study Area (nightly moon interference ≤ 15% — Moon below t
 he horizon for nearly all of astronomical darkness\, or too thin to matter
 ).\n\nCloud is the one thing no calendar can promise. When a window gets c
 lose\, check the live per-night forecast: https://stellarhound.com/dark-si
 tes/massacre-rim-wilderness-study-area?utm_source=calendar&utm_medium=ics&
 utm_campaign=dark-site-windows&utm_content=massacre-rim-wilderness-study-a
 rea\n\nRule city-ics-v1 — deterministic moon/darkness geometry\, Skyfiel
 d + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/massacre-rim-wilderness-study-area?
 utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_cont
 ent=massacre-rim-wilderness-study-area
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-massacre-rim-wilderness-study-area-2027-02-28@stellarh
 ound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20270228
DTEND;VALUE=DATE:20270313
SUMMARY:Dark-sky window · 13 moon-free nights
DESCRIPTION:13 nights with essentially moon-free dark hours at Massacre Rim
  Wilderness Study Area (nightly moon interference ≤ 15% — Moon below t
 he horizon for nearly all of astronomical darkness\, or too thin to matter
 ).\n\nCloud is the one thing no calendar can promise. When a window gets c
 lose\, check the live per-night forecast: https://stellarhound.com/dark-si
 tes/massacre-rim-wilderness-study-area?utm_source=calendar&utm_medium=ics&
 utm_campaign=dark-site-windows&utm_content=massacre-rim-wilderness-study-a
 rea\n\nRule city-ics-v1 — deterministic moon/darkness geometry\, Skyfiel
 d + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/massacre-rim-wilderness-study-area?
 utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_cont
 ent=massacre-rim-wilderness-study-area
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-massacre-rim-wilderness-study-area-2027-03-29@stellarh
 ound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20270329
DTEND;VALUE=DATE:20270411
SUMMARY:Dark-sky window · 13 moon-free nights
DESCRIPTION:13 nights with essentially moon-free dark hours at Massacre Rim
  Wilderness Study Area (nightly moon interference ≤ 15% — Moon below t
 he horizon for nearly all of astronomical darkness\, or too thin to matter
 ).\n\nCloud is the one thing no calendar can promise. When a window gets c
 lose\, check the live per-night forecast: https://stellarhound.com/dark-si
 tes/massacre-rim-wilderness-study-area?utm_source=calendar&utm_medium=ics&
 utm_campaign=dark-site-windows&utm_content=massacre-rim-wilderness-study-a
 rea\n\nRule city-ics-v1 — deterministic moon/darkness geometry\, Skyfiel
 d + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/massacre-rim-wilderness-study-area?
 utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_cont
 ent=massacre-rim-wilderness-study-area
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-massacre-rim-wilderness-study-area-2027-04-28@stellarh
 ound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20270428
DTEND;VALUE=DATE:20270510
SUMMARY:Dark-sky window · 12 moon-free nights
DESCRIPTION:12 nights with essentially moon-free dark hours at Massacre Rim
  Wilderness Study Area (nightly moon interference ≤ 15% — Moon below t
 he horizon for nearly all of astronomical darkness\, or too thin to matter
 ).\n\nCloud is the one thing no calendar can promise. When a window gets c
 lose\, check the live per-night forecast: https://stellarhound.com/dark-si
 tes/massacre-rim-wilderness-study-area?utm_source=calendar&utm_medium=ics&
 utm_campaign=dark-site-windows&utm_content=massacre-rim-wilderness-study-a
 rea\n\nRule city-ics-v1 — deterministic moon/darkness geometry\, Skyfiel
 d + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/massacre-rim-wilderness-study-area?
 utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_cont
 ent=massacre-rim-wilderness-study-area
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-massacre-rim-wilderness-study-area-2027-05-28@stellarh
 ound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20270528
DTEND;VALUE=DATE:20270609
SUMMARY:Dark-sky window · 12 moon-free nights
DESCRIPTION:12 nights with essentially moon-free dark hours at Massacre Rim
  Wilderness Study Area (nightly moon interference ≤ 15% — Moon below t
 he horizon for nearly all of astronomical darkness\, or too thin to matter
 ).\n\nCloud is the one thing no calendar can promise. When a window gets c
 lose\, check the live per-night forecast: https://stellarhound.com/dark-si
 tes/massacre-rim-wilderness-study-area?utm_source=calendar&utm_medium=ics&
 utm_campaign=dark-site-windows&utm_content=massacre-rim-wilderness-study-a
 rea\n\nRule city-ics-v1 — deterministic moon/darkness geometry\, Skyfiel
 d + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/massacre-rim-wilderness-study-area?
 utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_cont
 ent=massacre-rim-wilderness-study-area
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-massacre-rim-wilderness-study-area-2027-06-28@stellarh
 ound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20270628
DTEND;VALUE=DATE:20270710
SUMMARY:Dark-sky window · 12 moon-free nights
DESCRIPTION:12 nights with essentially moon-free dark hours at Massacre Rim
  Wilderness Study Area (nightly moon interference ≤ 15% — Moon below t
 he horizon for nearly all of astronomical darkness\, or too thin to matter
 ).\n\nCloud is the one thing no calendar can promise. When a window gets c
 lose\, check the live per-night forecast: https://stellarhound.com/dark-si
 tes/massacre-rim-wilderness-study-area?utm_source=calendar&utm_medium=ics&
 utm_campaign=dark-site-windows&utm_content=massacre-rim-wilderness-study-a
 rea\n\nRule city-ics-v1 — deterministic moon/darkness geometry\, Skyfiel
 d + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/massacre-rim-wilderness-study-area?
 utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_cont
 ent=massacre-rim-wilderness-study-area
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-massacre-rim-wilderness-study-area-2027-07-28@stellarh
 ound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20270728
DTEND;VALUE=DATE:20270809
SUMMARY:Dark-sky window · 12 moon-free nights
DESCRIPTION:12 nights with essentially moon-free dark hours at Massacre Rim
  Wilderness Study Area (nightly moon interference ≤ 15% — Moon below t
 he horizon for nearly all of astronomical darkness\, or too thin to matter
 ).\n\nCloud is the one thing no calendar can promise. When a window gets c
 lose\, check the live per-night forecast: https://stellarhound.com/dark-si
 tes/massacre-rim-wilderness-study-area?utm_source=calendar&utm_medium=ics&
 utm_campaign=dark-site-windows&utm_content=massacre-rim-wilderness-study-a
 rea\n\nRule city-ics-v1 — deterministic moon/darkness geometry\, Skyfiel
 d + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/massacre-rim-wilderness-study-area?
 utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_cont
 ent=massacre-rim-wilderness-study-area
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-massacre-rim-wilderness-study-area-2027-08-26@stellarh
 ound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20270826
DTEND;VALUE=DATE:20270907
SUMMARY:Dark-sky window · 12 moon-free nights
DESCRIPTION:12 nights with essentially moon-free dark hours at Massacre Rim
  Wilderness Study Area (nightly moon interference ≤ 15% — Moon below t
 he horizon for nearly all of astronomical darkness\, or too thin to matter
 ).\n\nCloud is the one thing no calendar can promise. When a window gets c
 lose\, check the live per-night forecast: https://stellarhound.com/dark-si
 tes/massacre-rim-wilderness-study-area?utm_source=calendar&utm_medium=ics&
 utm_campaign=dark-site-windows&utm_content=massacre-rim-wilderness-study-a
 rea\n\nRule city-ics-v1 — deterministic moon/darkness geometry\, Skyfiel
 d + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/massacre-rim-wilderness-study-area?
 utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_cont
 ent=massacre-rim-wilderness-study-area
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-massacre-rim-wilderness-study-area-2027-09-24@stellarh
 ound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20270924
DTEND;VALUE=DATE:20271006
SUMMARY:Dark-sky window · 12 moon-free nights
DESCRIPTION:12 nights with essentially moon-free dark hours at Massacre Rim
  Wilderness Study Area (nightly moon interference ≤ 15% — Moon below t
 he horizon for nearly all of astronomical darkness\, or too thin to matter
 ).\n\nCloud is the one thing no calendar can promise. When a window gets c
 lose\, check the live per-night forecast: https://stellarhound.com/dark-si
 tes/massacre-rim-wilderness-study-area?utm_source=calendar&utm_medium=ics&
 utm_campaign=dark-site-windows&utm_content=massacre-rim-wilderness-study-a
 rea\n\nRule city-ics-v1 — deterministic moon/darkness geometry\, Skyfiel
 d + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/massacre-rim-wilderness-study-area?
 utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_cont
 ent=massacre-rim-wilderness-study-area
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-massacre-rim-wilderness-study-area-2027-10-23@stellarh
 ound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20271023
DTEND;VALUE=DATE:20271105
SUMMARY:Dark-sky window · 13 moon-free nights
DESCRIPTION:13 nights with essentially moon-free dark hours at Massacre Rim
  Wilderness Study Area (nightly moon interference ≤ 15% — Moon below t
 he horizon for nearly all of astronomical darkness\, or too thin to matter
 ).\n\nCloud is the one thing no calendar can promise. When a window gets c
 lose\, check the live per-night forecast: https://stellarhound.com/dark-si
 tes/massacre-rim-wilderness-study-area?utm_source=calendar&utm_medium=ics&
 utm_campaign=dark-site-windows&utm_content=massacre-rim-wilderness-study-a
 rea\n\nRule city-ics-v1 — deterministic moon/darkness geometry\, Skyfiel
 d + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/massacre-rim-wilderness-study-area?
 utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_cont
 ent=massacre-rim-wilderness-study-area
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-massacre-rim-wilderness-study-area-2027-11-21@stellarh
 ound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20271121
DTEND;VALUE=DATE:20271204
SUMMARY:Dark-sky window · 13 moon-free nights
DESCRIPTION:13 nights with essentially moon-free dark hours at Massacre Rim
  Wilderness Study Area (nightly moon interference ≤ 15% — Moon below t
 he horizon for nearly all of astronomical darkness\, or too thin to matter
 ).\n\nCloud is the one thing no calendar can promise. When a window gets c
 lose\, check the live per-night forecast: https://stellarhound.com/dark-si
 tes/massacre-rim-wilderness-study-area?utm_source=calendar&utm_medium=ics&
 utm_campaign=dark-site-windows&utm_content=massacre-rim-wilderness-study-a
 rea\n\nRule city-ics-v1 — deterministic moon/darkness geometry\, Skyfiel
 d + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/massacre-rim-wilderness-study-area?
 utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_cont
 ent=massacre-rim-wilderness-study-area
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-massacre-rim-wilderness-study-area-2027-12-21@stellarh
 ound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20271221
DTEND;VALUE=DATE:20280101
SUMMARY:Dark-sky window · 11 moon-free nights
DESCRIPTION:11 nights with essentially moon-free dark hours at Massacre Rim
  Wilderness Study Area (nightly moon interference ≤ 15% — Moon below t
 he horizon for nearly all of astronomical darkness\, or too thin to matter
 ).\n\nCloud is the one thing no calendar can promise. When a window gets c
 lose\, check the live per-night forecast: https://stellarhound.com/dark-si
 tes/massacre-rim-wilderness-study-area?utm_source=calendar&utm_medium=ics&
 utm_campaign=dark-site-windows&utm_content=massacre-rim-wilderness-study-a
 rea\n\nRule city-ics-v1 — deterministic moon/darkness geometry\, Skyfiel
 d + JPL DE440s. Not a weather forecast.
URL:https://stellarhound.com/dark-sites/massacre-rim-wilderness-study-area?
 utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_cont
 ent=massacre-rim-wilderness-study-area
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
END:VCALENDAR