Observation

observation · observation-nps-yosemite-basic-20260922

Claims and evidence

Operating hours

Sunrise to sunset for day visitors; permitted backpackers are excepted.
Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-yosemite-hetch-hetchy-entrance

  1. Evidence stance: supports · Evidence details

    NPS identifies Yosemite as a nearly 1,200-square-mile Sierra Nevada national park, open 24 hours every day; Hetch Hetchy is open only sunrise to sunset except for permitted backpackers.

    Publisher
    National Park Service
    Observer / attribution
    NPS
    Observed at
    2025-09-22T00:00:00+00:00
    Retrieved at
    2026-09-22T18:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: National Park Service

Operating hours

Days
daily
Hours
24 hours
Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-yosemite-national-park

  1. Evidence stance: supports · Evidence details

    NPS identifies Yosemite as a nearly 1,200-square-mile Sierra Nevada national park, open 24 hours every day; Hetch Hetchy is open only sunrise to sunset except for permitted backpackers.

    Publisher
    National Park Service
    Observer / attribution
    NPS
    Observed at
    2025-09-22T00:00:00+00:00
    Retrieved at
    2026-09-22T18:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: National Park Service

Recorded observations

Browse observations separately (1)

NPS identifies Yosemite as a nearly 1,200-square-mile Sierra Nevada national park, open 24 hours every day; Hetch Hetchy is open only sunrise to sunset except for permitted backpackers.

Publisher
National Park Service
Observer / attribution
NPS
Observed at
2025-09-22T00:00:00+00:00
Retrieved at
2026-09-22T18:00:00+00:00

Retrieval time does not establish when an event occurred.

Observation details · Source details · Original source: National Park Service

Published record history

History lists published operations; it does not reconstruct removed content or confirm that external media remains available.

JSON

Historical evidence is not a guarantee of current conditions.