BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Stellarhound//city-ics-v1//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Stellarhound — Devils River State Natural Area — Del Norte
  Unit dark-sky nights
X-WR-CALDESC:Nights when the Moon leaves Devils River State Natural Area 
 — Del Norte Unit's dark hours essentially moon-free (moon interference 
 ≤ 15%\, the deep-sky standard used across stellarhound.com). Determinist
 ic moon & darkness geometry via Skyfield + JPL DE440s (city-ics-v1). Cloud
  cover is not knowable this far ahead — check the live forecast at https
 ://stellarhound.com/dark-sites/devils-river-state-natural-area-del-norte-u
 nit?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_
 content=devils-river-state-natural-area-del-norte-unit closer to each wind
 ow.
REFRESH-INTERVAL;VALUE=DURATION:P1W
X-PUBLISHED-TTL:P1W
BEGIN:VEVENT
UID:dark-site-window-devils-river-state-natural-area-del-norte-unit-2026-08
 -07@stellarhound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20260807
DTEND;VALUE=DATE:20260819
SUMMARY:Dark-sky window · 12 moon-free nights
DESCRIPTION:12 nights with essentially moon-free dark hours at Devils River
  State Natural Area — Del Norte Unit (nightly moon interference ≤ 15% 
 — Moon below the horizon for nearly all of astronomical darkness\, or to
 o thin to matter).\n\nCloud is the one thing no calendar can promise. When
  a window gets close\, check the live per-night forecast: https://stellarh
 ound.com/dark-sites/devils-river-state-natural-area-del-norte-unit?utm_sou
 rce=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_content=dev
 ils-river-state-natural-area-del-norte-unit\n\nRule city-ics-v1 — determ
 inistic moon/darkness geometry\, Skyfield + JPL DE440s. Not a weather fore
 cast.
URL:https://stellarhound.com/dark-sites/devils-river-state-natural-area-del
 -norte-unit?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-wind
 ows&utm_content=devils-river-state-natural-area-del-norte-unit
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-devils-river-state-natural-area-del-norte-unit-2026-09
 -05@stellarhound.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 Devils River
  State Natural Area — Del Norte Unit (nightly moon interference ≤ 15% 
 — Moon below the horizon for nearly all of astronomical darkness\, or to
 o thin to matter).\n\nCloud is the one thing no calendar can promise. When
  a window gets close\, check the live per-night forecast: https://stellarh
 ound.com/dark-sites/devils-river-state-natural-area-del-norte-unit?utm_sou
 rce=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_content=dev
 ils-river-state-natural-area-del-norte-unit\n\nRule city-ics-v1 — determ
 inistic moon/darkness geometry\, Skyfield + JPL DE440s. Not a weather fore
 cast.
URL:https://stellarhound.com/dark-sites/devils-river-state-natural-area-del
 -norte-unit?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-wind
 ows&utm_content=devils-river-state-natural-area-del-norte-unit
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-devils-river-state-natural-area-del-norte-unit-2026-10
 -04@stellarhound.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 Devils River
  State Natural Area — Del Norte Unit (nightly moon interference ≤ 15% 
 — Moon below the horizon for nearly all of astronomical darkness\, or to
 o thin to matter).\n\nCloud is the one thing no calendar can promise. When
  a window gets close\, check the live per-night forecast: https://stellarh
 ound.com/dark-sites/devils-river-state-natural-area-del-norte-unit?utm_sou
 rce=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_content=dev
 ils-river-state-natural-area-del-norte-unit\n\nRule city-ics-v1 — determ
 inistic moon/darkness geometry\, Skyfield + JPL DE440s. Not a weather fore
 cast.
URL:https://stellarhound.com/dark-sites/devils-river-state-natural-area-del
 -norte-unit?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-wind
 ows&utm_content=devils-river-state-natural-area-del-norte-unit
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-devils-river-state-natural-area-del-norte-unit-2026-11
 -02@stellarhound.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 Devils River
  State Natural Area — Del Norte Unit (nightly moon interference ≤ 15% 
 — Moon below the horizon for nearly all of astronomical darkness\, or to
 o thin to matter).\n\nCloud is the one thing no calendar can promise. When
  a window gets close\, check the live per-night forecast: https://stellarh
 ound.com/dark-sites/devils-river-state-natural-area-del-norte-unit?utm_sou
 rce=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_content=dev
 ils-river-state-natural-area-del-norte-unit\n\nRule city-ics-v1 — determ
 inistic moon/darkness geometry\, Skyfield + JPL DE440s. Not a weather fore
 cast.
URL:https://stellarhound.com/dark-sites/devils-river-state-natural-area-del
 -norte-unit?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-wind
 ows&utm_content=devils-river-state-natural-area-del-norte-unit
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-devils-river-state-natural-area-del-norte-unit-2026-12
 -02@stellarhound.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 Devils River
  State Natural Area — Del Norte Unit (nightly moon interference ≤ 15% 
 — Moon below the horizon for nearly all of astronomical darkness\, or to
 o thin to matter).\n\nCloud is the one thing no calendar can promise. When
  a window gets close\, check the live per-night forecast: https://stellarh
 ound.com/dark-sites/devils-river-state-natural-area-del-norte-unit?utm_sou
 rce=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_content=dev
 ils-river-state-natural-area-del-norte-unit\n\nRule city-ics-v1 — determ
 inistic moon/darkness geometry\, Skyfield + JPL DE440s. Not a weather fore
 cast.
URL:https://stellarhound.com/dark-sites/devils-river-state-natural-area-del
 -norte-unit?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-wind
 ows&utm_content=devils-river-state-natural-area-del-norte-unit
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-devils-river-state-natural-area-del-norte-unit-2026-12
 -31@stellarhound.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 Devils River
  State Natural Area — Del Norte Unit (nightly moon interference ≤ 15% 
 — Moon below the horizon for nearly all of astronomical darkness\, or to
 o thin to matter).\n\nCloud is the one thing no calendar can promise. When
  a window gets close\, check the live per-night forecast: https://stellarh
 ound.com/dark-sites/devils-river-state-natural-area-del-norte-unit?utm_sou
 rce=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_content=dev
 ils-river-state-natural-area-del-norte-unit\n\nRule city-ics-v1 — determ
 inistic moon/darkness geometry\, Skyfield + JPL DE440s. Not a weather fore
 cast.
URL:https://stellarhound.com/dark-sites/devils-river-state-natural-area-del
 -norte-unit?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-wind
 ows&utm_content=devils-river-state-natural-area-del-norte-unit
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-devils-river-state-natural-area-del-norte-unit-2027-01
 -30@stellarhound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20270130
DTEND;VALUE=DATE:20270212
SUMMARY:Dark-sky window · 13 moon-free nights
DESCRIPTION:13 nights with essentially moon-free dark hours at Devils River
  State Natural Area — Del Norte Unit (nightly moon interference ≤ 15% 
 — Moon below the horizon for nearly all of astronomical darkness\, or to
 o thin to matter).\n\nCloud is the one thing no calendar can promise. When
  a window gets close\, check the live per-night forecast: https://stellarh
 ound.com/dark-sites/devils-river-state-natural-area-del-norte-unit?utm_sou
 rce=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_content=dev
 ils-river-state-natural-area-del-norte-unit\n\nRule city-ics-v1 — determ
 inistic moon/darkness geometry\, Skyfield + JPL DE440s. Not a weather fore
 cast.
URL:https://stellarhound.com/dark-sites/devils-river-state-natural-area-del
 -norte-unit?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-wind
 ows&utm_content=devils-river-state-natural-area-del-norte-unit
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-devils-river-state-natural-area-del-norte-unit-2027-02
 -28@stellarhound.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 Devils River
  State Natural Area — Del Norte Unit (nightly moon interference ≤ 15% 
 — Moon below the horizon for nearly all of astronomical darkness\, or to
 o thin to matter).\n\nCloud is the one thing no calendar can promise. When
  a window gets close\, check the live per-night forecast: https://stellarh
 ound.com/dark-sites/devils-river-state-natural-area-del-norte-unit?utm_sou
 rce=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_content=dev
 ils-river-state-natural-area-del-norte-unit\n\nRule city-ics-v1 — determ
 inistic moon/darkness geometry\, Skyfield + JPL DE440s. Not a weather fore
 cast.
URL:https://stellarhound.com/dark-sites/devils-river-state-natural-area-del
 -norte-unit?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-wind
 ows&utm_content=devils-river-state-natural-area-del-norte-unit
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-devils-river-state-natural-area-del-norte-unit-2027-03
 -30@stellarhound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20270330
DTEND;VALUE=DATE:20270412
SUMMARY:Dark-sky window · 13 moon-free nights
DESCRIPTION:13 nights with essentially moon-free dark hours at Devils River
  State Natural Area — Del Norte Unit (nightly moon interference ≤ 15% 
 — Moon below the horizon for nearly all of astronomical darkness\, or to
 o thin to matter).\n\nCloud is the one thing no calendar can promise. When
  a window gets close\, check the live per-night forecast: https://stellarh
 ound.com/dark-sites/devils-river-state-natural-area-del-norte-unit?utm_sou
 rce=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_content=dev
 ils-river-state-natural-area-del-norte-unit\n\nRule city-ics-v1 — determ
 inistic moon/darkness geometry\, Skyfield + JPL DE440s. Not a weather fore
 cast.
URL:https://stellarhound.com/dark-sites/devils-river-state-natural-area-del
 -norte-unit?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-wind
 ows&utm_content=devils-river-state-natural-area-del-norte-unit
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-devils-river-state-natural-area-del-norte-unit-2027-04
 -29@stellarhound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20270429
DTEND;VALUE=DATE:20270511
SUMMARY:Dark-sky window · 12 moon-free nights
DESCRIPTION:12 nights with essentially moon-free dark hours at Devils River
  State Natural Area — Del Norte Unit (nightly moon interference ≤ 15% 
 — Moon below the horizon for nearly all of astronomical darkness\, or to
 o thin to matter).\n\nCloud is the one thing no calendar can promise. When
  a window gets close\, check the live per-night forecast: https://stellarh
 ound.com/dark-sites/devils-river-state-natural-area-del-norte-unit?utm_sou
 rce=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_content=dev
 ils-river-state-natural-area-del-norte-unit\n\nRule city-ics-v1 — determ
 inistic moon/darkness geometry\, Skyfield + JPL DE440s. Not a weather fore
 cast.
URL:https://stellarhound.com/dark-sites/devils-river-state-natural-area-del
 -norte-unit?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-wind
 ows&utm_content=devils-river-state-natural-area-del-norte-unit
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-devils-river-state-natural-area-del-norte-unit-2027-05
 -29@stellarhound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20270529
DTEND;VALUE=DATE:20270609
SUMMARY:Dark-sky window · 11 moon-free nights
DESCRIPTION:11 nights with essentially moon-free dark hours at Devils River
  State Natural Area — Del Norte Unit (nightly moon interference ≤ 15% 
 — Moon below the horizon for nearly all of astronomical darkness\, or to
 o thin to matter).\n\nCloud is the one thing no calendar can promise. When
  a window gets close\, check the live per-night forecast: https://stellarh
 ound.com/dark-sites/devils-river-state-natural-area-del-norte-unit?utm_sou
 rce=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_content=dev
 ils-river-state-natural-area-del-norte-unit\n\nRule city-ics-v1 — determ
 inistic moon/darkness geometry\, Skyfield + JPL DE440s. Not a weather fore
 cast.
URL:https://stellarhound.com/dark-sites/devils-river-state-natural-area-del
 -norte-unit?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-wind
 ows&utm_content=devils-river-state-natural-area-del-norte-unit
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-devils-river-state-natural-area-del-norte-unit-2027-06
 -28@stellarhound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20270628
DTEND;VALUE=DATE:20270709
SUMMARY:Dark-sky window · 11 moon-free nights
DESCRIPTION:11 nights with essentially moon-free dark hours at Devils River
  State Natural Area — Del Norte Unit (nightly moon interference ≤ 15% 
 — Moon below the horizon for nearly all of astronomical darkness\, or to
 o thin to matter).\n\nCloud is the one thing no calendar can promise. When
  a window gets close\, check the live per-night forecast: https://stellarh
 ound.com/dark-sites/devils-river-state-natural-area-del-norte-unit?utm_sou
 rce=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_content=dev
 ils-river-state-natural-area-del-norte-unit\n\nRule city-ics-v1 — determ
 inistic moon/darkness geometry\, Skyfield + JPL DE440s. Not a weather fore
 cast.
URL:https://stellarhound.com/dark-sites/devils-river-state-natural-area-del
 -norte-unit?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-wind
 ows&utm_content=devils-river-state-natural-area-del-norte-unit
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-devils-river-state-natural-area-del-norte-unit-2027-07
 -28@stellarhound.com
DTSTAMP:20260719T000000Z
DTSTART;VALUE=DATE:20270728
DTEND;VALUE=DATE:20270808
SUMMARY:Dark-sky window · 11 moon-free nights
DESCRIPTION:11 nights with essentially moon-free dark hours at Devils River
  State Natural Area — Del Norte Unit (nightly moon interference ≤ 15% 
 — Moon below the horizon for nearly all of astronomical darkness\, or to
 o thin to matter).\n\nCloud is the one thing no calendar can promise. When
  a window gets close\, check the live per-night forecast: https://stellarh
 ound.com/dark-sites/devils-river-state-natural-area-del-norte-unit?utm_sou
 rce=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_content=dev
 ils-river-state-natural-area-del-norte-unit\n\nRule city-ics-v1 — determ
 inistic moon/darkness geometry\, Skyfield + JPL DE440s. Not a weather fore
 cast.
URL:https://stellarhound.com/dark-sites/devils-river-state-natural-area-del
 -norte-unit?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-wind
 ows&utm_content=devils-river-state-natural-area-del-norte-unit
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-devils-river-state-natural-area-del-norte-unit-2027-08
 -26@stellarhound.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 Devils River
  State Natural Area — Del Norte Unit (nightly moon interference ≤ 15% 
 — Moon below the horizon for nearly all of astronomical darkness\, or to
 o thin to matter).\n\nCloud is the one thing no calendar can promise. When
  a window gets close\, check the live per-night forecast: https://stellarh
 ound.com/dark-sites/devils-river-state-natural-area-del-norte-unit?utm_sou
 rce=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_content=dev
 ils-river-state-natural-area-del-norte-unit\n\nRule city-ics-v1 — determ
 inistic moon/darkness geometry\, Skyfield + JPL DE440s. Not a weather fore
 cast.
URL:https://stellarhound.com/dark-sites/devils-river-state-natural-area-del
 -norte-unit?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-wind
 ows&utm_content=devils-river-state-natural-area-del-norte-unit
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-devils-river-state-natural-area-del-norte-unit-2027-09
 -24@stellarhound.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 Devils River
  State Natural Area — Del Norte Unit (nightly moon interference ≤ 15% 
 — Moon below the horizon for nearly all of astronomical darkness\, or to
 o thin to matter).\n\nCloud is the one thing no calendar can promise. When
  a window gets close\, check the live per-night forecast: https://stellarh
 ound.com/dark-sites/devils-river-state-natural-area-del-norte-unit?utm_sou
 rce=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_content=dev
 ils-river-state-natural-area-del-norte-unit\n\nRule city-ics-v1 — determ
 inistic moon/darkness geometry\, Skyfield + JPL DE440s. Not a weather fore
 cast.
URL:https://stellarhound.com/dark-sites/devils-river-state-natural-area-del
 -norte-unit?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-wind
 ows&utm_content=devils-river-state-natural-area-del-norte-unit
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-devils-river-state-natural-area-del-norte-unit-2027-10
 -23@stellarhound.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 Devils River
  State Natural Area — Del Norte Unit (nightly moon interference ≤ 15% 
 — Moon below the horizon for nearly all of astronomical darkness\, or to
 o thin to matter).\n\nCloud is the one thing no calendar can promise. When
  a window gets close\, check the live per-night forecast: https://stellarh
 ound.com/dark-sites/devils-river-state-natural-area-del-norte-unit?utm_sou
 rce=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_content=dev
 ils-river-state-natural-area-del-norte-unit\n\nRule city-ics-v1 — determ
 inistic moon/darkness geometry\, Skyfield + JPL DE440s. Not a weather fore
 cast.
URL:https://stellarhound.com/dark-sites/devils-river-state-natural-area-del
 -norte-unit?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-wind
 ows&utm_content=devils-river-state-natural-area-del-norte-unit
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-devils-river-state-natural-area-del-norte-unit-2027-11
 -21@stellarhound.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 Devils River
  State Natural Area — Del Norte Unit (nightly moon interference ≤ 15% 
 — Moon below the horizon for nearly all of astronomical darkness\, or to
 o thin to matter).\n\nCloud is the one thing no calendar can promise. When
  a window gets close\, check the live per-night forecast: https://stellarh
 ound.com/dark-sites/devils-river-state-natural-area-del-norte-unit?utm_sou
 rce=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_content=dev
 ils-river-state-natural-area-del-norte-unit\n\nRule city-ics-v1 — determ
 inistic moon/darkness geometry\, Skyfield + JPL DE440s. Not a weather fore
 cast.
URL:https://stellarhound.com/dark-sites/devils-river-state-natural-area-del
 -norte-unit?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-wind
 ows&utm_content=devils-river-state-natural-area-del-norte-unit
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
UID:dark-site-window-devils-river-state-natural-area-del-norte-unit-2027-12
 -21@stellarhound.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 Devils River
  State Natural Area — Del Norte Unit (nightly moon interference ≤ 15% 
 — Moon below the horizon for nearly all of astronomical darkness\, or to
 o thin to matter).\n\nCloud is the one thing no calendar can promise. When
  a window gets close\, check the live per-night forecast: https://stellarh
 ound.com/dark-sites/devils-river-state-natural-area-del-norte-unit?utm_sou
 rce=calendar&utm_medium=ics&utm_campaign=dark-site-windows&utm_content=dev
 ils-river-state-natural-area-del-norte-unit\n\nRule city-ics-v1 — determ
 inistic moon/darkness geometry\, Skyfield + JPL DE440s. Not a weather fore
 cast.
URL:https://stellarhound.com/dark-sites/devils-river-state-natural-area-del
 -norte-unit?utm_source=calendar&utm_medium=ics&utm_campaign=dark-site-wind
 ows&utm_content=devils-river-state-natural-area-del-norte-unit
CATEGORIES:dark-sky-window
STATUS:CONFIRMED
TRANSP:TRANSPARENT
END:VEVENT
END:VCALENDAR