Back

lake · optional

Isa Lake & Craig Pass

At the Continental Divide, a charming two-ocean claim survives only with an important NPS hedge.

Yellowstone fire danger is HIGH

The dedicated NPS fire page and July 14 release list HIGH fire danger. No fire restrictions were in place when checked; both danger and restrictions can change.

Checked Jul 26, 2026

Parkwide chip sealing can move without notice

NPS says chip sealing can cause delays up to 30 minutes at various Yellowstone locations in 2026. Slow down on loose gravel and increase following distance.

Checked Jul 26, 2026

Chapter

The lake that may drain backward

6 minutesRoadside exhibit · Paved or compacted pullout · partial wheelchair access

Narration

The lake that may drain backward

Transcript

What to notice

  • Continental Divide
  • 8,262-foot Craig Pass
  • Carefully hedged two-ocean drainage story

Field notes

Craig Pass elevation
8,262 feet
Two-ocean drainage
If it still occurs, only at peak snowmelt after deep-snow winters