Evergreen Regional Airport/Middleton Field traffic pattern
Pattern altitude at Evergreen Regional Airport/Middleton Field (GZH · KGZH) is 1,300 ft MSL (≈1,000 AGL) by the standard convention — none is published for this field, and every runway end is standard left traffic.
All of Evergreen Regional Airport/Middleton Field — runways, frequencies, charts and live weatherPattern diagram
Drawn to scale from the FAA NASR runway alignments and the per end right traffic flags — pick a runway to see its pattern. Live wind picks the favored runway when KGZH reports it.
RWY 10LEFT traffic
- Heading
- 103° mag · 100° true
- Dimensions
- 5,004 × 150 ft
- TPA
- 1,300 ft MSL (≈1,000 AGL) · standard
- Surface
- Asphalt
- Lights
- 4-light PAPI (left) (3°)
- CTAF
- 122.7
Enter the left downwind (heading 283°) on the 45° at 1,300 ft MSL (≈1,000 AGL).
More details — RWY 10
- Threshold elev
- 259 ft
- Markings
- nonprecision
- Approach obstacle
- Tree, 45 ft, 1,095 ft from threshold, 116 ft L of centerline — 19:1 slope to clear · penetrates the 20:1 visual approach surface
- Threshold crossing height
- 51 ft
- TDZ elevation
- 259 ft
Pattern side: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: FAA runway-end coordinates
Pattern direction by runway
| Runway | Pattern | Heading | Pattern altitude |
|---|---|---|---|
| 01 | Left traffic | 008° mag | 1,300 ft MSL (≈1,000 AGL) |
| 19 | Left traffic | 188° mag | 1,300 ft MSL (≈1,000 AGL) |
| 10 | Left traffic | 103° mag | 1,300 ft MSL (≈1,000 AGL) |
| 28 | Left traffic | 283° mag | 1,300 ft MSL (≈1,000 AGL) |
No pattern altitude is published for KGZH; the figure above is the AC 90-66B 1,000 ft AGL convention for propeller aircraft, rounded to the field. Turbine aircraft normally fly 1,500 ft AGL. Headings are the runway alignment; downwind is the reciprocal.
Flying the pattern at KGZH
Evergreen Regional Airport/Middleton Field is non towered, so the pattern is self announced on CTAF 122.7. AC 90-66B asks for a report on entry and on each leg, and for the standard 45° entry to downwind at pattern altitude.
All ends are left traffic, which is the FAR 91.126 default — turns to the left unless the field charts otherwise. The full entry procedure is here →
Frequently asked
What is the traffic pattern altitude at KGZH?
Evergreen Regional Airport/Middleton Field has no traffic pattern altitude published in the FAA NASR data. The AC 90-66B convention for propeller aircraft is 1,000 ft AGL, which works out to roughly 1,300 ft MSL (≈1,000 AGL) here — but confirm it against the Chart Supplement before you fly, since a field can have a non standard pattern altitude that NASR does not carry.
Does KGZH have right traffic?
No. All 4 runway ends at Evergreen Regional Airport/Middleton Field use standard left traffic, so no right pattern is charted here.
What frequency is the pattern on at KGZH?
Evergreen Regional Airport/Middleton Field is non towered, so pattern position reports go on the CTAF, 122.7. AC 90-66B asks for self announcing on entry and on each leg.
More about KGZH
Pattern direction and alignment are drawn from the FAA NASR (28-day cycle); the diagram is generated, not an FAA chart. Pattern altitude is shown as published where NASR carries one, otherwise as the AC 90-66B 1,000 ft AGL convention. For planning and education only; always verify against the Chart Supplement.